1. Subgenus Ennea (Acanthennea) E. von Martens, 1898 accepted as Acanthennea E. von Martens, 1898
   1. Species Ennea (Acanthennea) erinaceus E. von Martens, 1898 accepted as Acanthennea erinaceus (E. von Martens, 1898) (original combination)
2. Subgenus Ennea (Carychiopsis) E. von Martens, 1895 accepted as Ennea H. Adams & A. Adams, 1855 accepted as Ptychotrema (Ennea) H. Adams & A. Adams, 1855 represented as Ptychotrema L. Pfeiffer, 1853
   1. Species Ennea (Carychiopsis) paradoxula E. von Martens, 1895 accepted as Ptychotrema paradoxulum (E. von Martens, 1895) (unaccepted > superseded combination)
3. Subgenus Ennea (Diaphora) E. von Martens, 1860 accepted as Diaphera Albers, 1850 (unaccepted > unjustified emendation)
   1. Species Ennea (Diaphora) anctostoma Quadras & Möllendorff, 1895 accepted as Diaphera anctostoma (Quadras & Möllendorff, 1895) (original combination)
   2. Species Ennea (Diaphora) aptycha Möllendorff, 1895 accepted as Diaphera aptycha (Möllendorff, 1895) (original combination)
   3. Species Ennea (Diaphora) bicristata Möllendorff, 1894 accepted as Diaphera dicraspedia (Möllendorff, 1898) (junior homonym of Ennea bicristata Morelet, 1873; Ennea dicraspedia is a replacement name)
   4. Species Ennea (Diaphora) canaliculata Quadras & Möllendorff, 1896 accepted as Diaphera canaliculata (Quadras & Möllendorff, 1896) (original combination)
   5. Species Ennea (Diaphora) cardiostoma Quadras & Möllendorff, 1894 accepted as Diaphera cardiostoma (Quadras & Möllendorff, 1894) (unaccepted > superseded combination)
   6. Species Ennea (Diaphora) cristatella Möllendorff, 1896 accepted as Diaphera cristatella (Möllendorff, 1896) (original combination)
   7. Species Ennea (Diaphora) cumingiana (L. Pfeiffer, 1845) accepted as Diaphera cumingiana (L. Pfeiffer, 1845) (unaccepted > superseded combination)
   8. Species Ennea (Diaphora) cuspidata Möllendorff, 1895 accepted as Diaphera cuspidata (Möllendorff, 1895) (original combination)
   9. Species Ennea (Diaphora) cylindrica Quadras & Möllendorff, 1895 accepted as Diaphera cylindrica (Quadras & Möllendorff, 1895) (original combination)
   10. Species Ennea (Diaphora) densecostulata Möllendorff, 1901 accepted as Diaphera densecostulata (Möllendorff, 1901) (original combination)
   11. Species Ennea (Diaphora) devians Möllendorff, 1890 accepted as Diaphera devians (Möllendorff, 1890) (original combination)
   12. Species Ennea (Diaphora) dicraspedia Möllendorff, 1898 accepted as Diaphera dicraspedia (Möllendorff, 1898) (original combination)
   13. Species Ennea (Diaphora) dilophia Quadras & Möllendorff, 1895 accepted as Diaphera dilophia (Quadras & Möllendorff, 1895) (original combination)
   14. Species Ennea (Diaphora) eulophia Quadras & Möllendorff, 1895 accepted as Diaphera eulophia (Quadras & Möllendorff, 1895) (original combination)
   15. Species Ennea (Diaphora) euryomphala Möllendorff, 1895 accepted as Diaphera euryomphala (Möllendorff, 1895) (original combination)
   16. Species Ennea (Diaphora) eutrachela Möllendorff, 1890 accepted as Diaphera eutrachela (Möllendorff, 1890) (original combination)
   17. Species Ennea (Diaphora) hidalgoi Möllendorff, 1888 accepted as Diaphera hidalgoi (Möllendorff, 1888) (unaccepted > superseded combination)
   18. Species Ennea (Diaphora) homalogyra Quadras & Möllendorff, 1895 accepted as Diaphera homalogyra (Quadras & Möllendorff, 1895) (original combination)
   19. Species Ennea (Diaphora) kobelti Möllendorff, 1898 accepted as Diaphera kobelti (Möllendorff, 1898) (original combination)
   20. Species Ennea (Diaphora) kochiana Möllendorff, 1888 accepted as Diaphera kochiana (Möllendorff, 1888) (original combination)
   21. Species Ennea (Diaphora) locardi Hidalgo, 1890 accepted as Diaphera locardi (Hidalgo, 1890) (original combination)
   22. Species Ennea (Diaphora) macrostoma Quadras & Möllendorff, 1894 accepted as Diaphera macrostoma (Quadras & Möllendorff, 1894) (original combination)
   23. Species Ennea (Diaphora) moellendorffi Hidalgo, 1890 accepted as Diaphera moellendorffi (Hidalgo, 1890) (unaccepted > superseded combination)
   24. Species Ennea (Diaphora) morleti Hidalgo, 1890 accepted as Diaphera morleti (Hidalgo, 1890) (unaccepted > superseded combination)
   25. Species Ennea (Diaphora) nitidula Quadras & Möllendorff, 1894 accepted as Diaphera nitidula (Quadras & Möllendorff, 1894) (unaccepted > superseded combination)
   26. Species Ennea (Diaphora) otostoma Quadras & Möllendorff, 1894 accepted as Diaphera otostoma (Quadras & Möllendorff, 1894) (unaccepted > superseded combination)
   27. Species Ennea (Diaphora) pleistogyra Quadras & Möllendorff, 1895 accepted as Diaphera pleistogyra (Quadras & Möllendorff, 1895) (original combination)
   28. Species Ennea (Diaphora) quadrasi Möllendorff, 1887 accepted as Diaphera quadrasi (Möllendorff, 1887) (original combination)
   29. Species Ennea (Diaphora) samarica Möllendorff, 1896 accepted as Diaphera samarica (Möllendorff, 1896) (original combination)
   30. Species Ennea (Diaphora) sericina Möllendorff, 1887 accepted as Diaphera sericina (Möllendorff, 1887) (unaccepted > superseded combination)
   31. Species Ennea (Diaphora) solenidium Möllendorff, 1896 accepted as Diaphera solenidium (Möllendorff, 1896) (original combination)
   32. Species Ennea (Diaphora) strangulata Möllendorff, 1894 accepted as Diaphera strangulata (Möllendorff, 1894) (original combination)
   33. Species Ennea (Diaphora) strophostoma Quadras & Möllendorff, 1896 accepted as Diaphera strophostoma (Quadras & Möllendorff, 1896) (original combination)
   34. Species Ennea (Diaphora) telescopium Möllendorff, 1896 accepted as Diaphera telescopium (Möllendorff, 1896) (original combination)
   35. Species Ennea (Diaphora) torta Quadras & Möllendorff, 1894 accepted as Diaphera torta (Quadras & Möllendorff, 1894) (original combination)
   36. Species Ennea (Diaphora) truncatella Möllendorff, 1896 accepted as Diaphera truncatella (Möllendorff, 1896) (original combination)
   37. Species Ennea (Diaphora) tuba Möllendorff, 1887 accepted as Diaphera tuba (Möllendorff, 1887) (original combination)
   38. Species Ennea (Diaphora) unicristata Möllendorff, 1894 accepted as Diaphera unicristata (Möllendorff, 1894) (original combination)
4. Subgenus Ennea (Edentulina) L. Pfeiffer, 1856 accepted as Edentulina L. Pfeiffer, 1856 (original rank)
   1. Species Ennea (Edentulina) anodon L. Pfeiffer, 1855 accepted as Edentulina anodon (L. Pfeiffer, 1855)
   2. Species Ennea (Edentulina) latula E. von Martens, 1895 accepted as Gonaxis latula (E. von Martens, 1895) (basionym)
   3. Species Ennea (Edentulina) longula E. A. Smith, 1894 accepted as Pseudelma inconspicua (Morelet, 1881)
   4. Species Ennea (Edentulina) ovoidea (Bruguière, 1789) accepted as Edentulina ovoidea (Bruguière, 1789) (unaccepted > superseded combination)
5. Subgenus Ennea (Elma) H. Adams, 1866 accepted as Elma H. Adams, 1866 (original rank)
   1. Species Ennea (Elma) mansuyi Dautzenberg & H. Fischer, 1906 accepted as Elma mansuyi (Dautzenberg & H. Fischer, 1906) (basionym)
   2. Species Ennea (Elma) messageri Bavay & Dautzenberg, 1904 accepted as Elma messageri (Bavay & Dautzenberg, 1904) (original combination)
   3. Species Ennea (Elma) nevilli H. Adams, 1868 accepted as Stereostele nevilli (H. Adams, 1868) (original combination)
   4. Species Ennea (Elma) sinensis Möllendorff, 1886 accepted as Elma sinensis (Möllendorff, 1886) (original combination)
   5. Species Ennea (Elma) swinhoei H. Adams, 1866 accepted as Elma swinhoei (H. Adams, 1866) (basionym)
   6. Species Ennea (Elma) tonkiniana Bavay & Dautzenberg, 1904 accepted as Elma tonkiniana (Bavay & Dautzenberg, 1904) (original combination)
6. Subgenus Ennea (Enneastrum) L. Pfeiffer, 1856 accepted as Ennea H. Adams & A. Adams, 1855 accepted as Ptychotrema (Ennea) H. Adams & A. Adams, 1855 represented as Ptychotrema L. Pfeiffer, 1853
   1. Species Ennea (Enneastrum) feai Germain, 1915 accepted as Gulella feai (Germain, 1915) (basionym)
   2. Species Ennea (Enneastrum) girardi Germain, 1915 accepted as Gulella germaini Connolly, 1929 accepted as Gulella reesi (Preston, 1914) (Invalid: junior primary homonym of Ennea girardi Kobelt, 1904; Gulella germaini Connolly, 1929 is a replacement name.)
   3. Species Ennea (Enneastrum) martensi d'Ailly, 1896 accepted as Ptychotrema martensi (d'Ailly, 1896) (basionym)
   4. Species Ennea (Enneastrum) perforata d'Ailly, 1896 accepted as Ptychotrema perforatum (d'Ailly, 1896) (original combination)
   5. Species Ennea (Enneastrum) poutrini Germain, 1918 accepted as Gulella poutrini (Germain, 1918) (original combination)
   6. Species Ennea (Enneastrum) serrata d'Ailly, 1896 accepted as Ennea serrata d'Ailly, 1896 accepted as Ptychotrema serratum (d'Ailly, 1896) (basionym)
   7. Species Ennea (Enneastrum) newtoni Girard, 1892 (uncertain > taxon inquirendum)
7. Subgenus Ennea (Excisa) d'Ailly, 1896 accepted as Ptychotrema (Excisa) d'Ailly, 1896 represented as Ptychotrema L. Pfeiffer, 1853 (original combination)
   1. Species Ennea (Excisa) boangolensis d'Ailly, 1896 accepted as Ptychotrema boangolense (d'Ailly, 1896) (unaccepted > superseded combination)
   2. Species Ennea (Excisa) duseni d'Ailly, 1896 accepted as Ptychotrema duseni (d'Ailly, 1896) (original combination)
   3. Species Ennea (Excisa) lamollei Germain, 1911 accepted as Gulella lamollei (Germain, 1911) (unaccepted > superseded combination)
8. Subgenus Ennea (Gonospira) Swainson, 1840 accepted as Gonospira Swainson, 1840 (unaccepted > superseded rank)
   1. Species Ennea (Gonospira) ringens H. Adams, 1870 accepted as Ptychotrema ringens (H. Adams, 1870) (unaccepted > superseded combination)
9. Subgenus Ennea (Gulella) L. Pfeiffer, 1856 accepted as Gulella L. Pfeiffer, 1856 (original rank)
   1. Species Ennea (Gulella) acutidens O. Boettger, 1905 accepted as Digulella acutidens (O. Boettger, 1905) (unaccepted > superseded combination)
   2. Species Ennea (Gulella) anceyi G. Nevill, 1890 accepted as Ptychotrema anceyi (G. Nevill, 1890) (original combination)
   3. Species Ennea (Gulella) babaulti Germain, 1919 accepted as Gulella babaulti (Germain, 1919) accepted as Gulella woodhousei (Preston, 1913) accepted as Gulella landianiensis woodhousei (Preston, 1913) (original combination)
   4. Species Ennea (Gulella) cadmani Preston, 1916 accepted as Gulella cadmani (Preston, 1916) (basionym)
   5. Species Ennea (Gulella) cavidens E. von Martens, 1876 accepted as Digulella cavidens (E. von Martens, 1876) (unaccepted > superseded combination)
   6. Species Ennea (Gulella) clavulata (Lamarck, 1822) accepted as Microstrophia clavulata (Lamarck, 1822) (unaccepted > superseded combination)
   7. Species Ennea (Gulella) coarctata d'Ailly, 1910 accepted as Gulella coarctata (d'Ailly, 1910) (basionym)
   8. Species Ennea (Gulella) conospira E. von Martens, 1892 accepted as Conogulella conospira (E. von Martens, 1892) accepted as Gulella conospira (E. von Martens, 1892) (unaccepted > superseded combination)
   9. Species Ennea (Gulella) conradti E. von Martens, 1895 accepted as Gulella conradti (E. von Martens, 1895) (basionym)
   10. Species Ennea (Gulella) cristata Kobelt, 1910 accepted as Gulella cruciata (E. von Martens, 1900) (invalid: in error for Ennea cruciata E. von Martens, 1900)
   11. Species Ennea (Gulella) foliifera E. von Martens, 1895 accepted as Gulella foliifera (E. von Martens, 1895) accepted as Primigulella foliifera (E. von Martens, 1895) (basionym)
   12. Species Ennea (Gulella) fortidentata E. A. Smith, 1890 accepted as Gulella fortidentata (E. A. Smith, 1890) (unaccepted > superseded combination)
   13. Species Ennea (Gulella) girardi Kobelt, 1904 accepted as Gulella girardi (Kobelt, 1904) (original combination)
   14. Species Ennea (Gulella) hidalgoi Girard, 1894 accepted as Gulella girardi (Kobelt, 1904) (Invalid: not Möllendorff, 1888; Ennea girardi is a replacement name)
   15. Species Ennea (Gulella) insularis Girard, 1894 accepted as Gulella insularis (Girard, 1894) (basionym)
   16. Species Ennea (Gulella) laevigata Dohrn, 1865 accepted as Gulella laevigata (Dohrn, 1865) (unaccepted > superseded combination)
   17. Species Ennea (Gulella) linguifera E. von Martens, 1895 accepted as Primigulella linguifera (E. von Martens, 1895) (original combination)
   18. Species Ennea (Gulella) lobidens Thiele, 1911 accepted as Primigulella lobidens (Thiele, 1911) (original combination)
   19. Species Ennea (Gulella) meruensis d'Ailly, 1910 accepted as Gulella meruensis (d'Ailly, 1910) (unaccepted > superseded combination, basionym)
   20. Species Ennea (Gulella) modesta H. Adams, 1867 accepted as Microstrophia modesta (H. Adams, 1867) (basionym)
   21. Species Ennea (Gulella) noltei O. Boettger, 1898 accepted as Gulella noltei (O. Boettger, 1898) (original combination)
   22. Species Ennea (Gulella) pallaryi Preston, 1909 accepted as Gulella vriesiana (Ancey, 1885) accepted as Digulella vriesiana (Ancey, 1885) (junior synonym)
   23. Species Ennea (Gulella) sexdentata E. von Martens, 1869 accepted as Gulella sexdentata (E. von Martens, 1869) (unaccepted > superseded combination)
   24. Species Ennea (Gulella) subhyalina E. A. Smith, 1890 accepted as Gulella subhyalina (E. A. Smith, 1890) (unaccepted > superseded combination)
   25. Species Ennea (Gulella) triplicina E. von Martens, 1895 accepted as Gulella triplicina (E. von Martens, 1895) (basionym)
   26. Species Ennea (Gulella) ugandensis E. A. Smith, 1901 accepted as Gulella ugandensis (E. A. Smith, 1901) (basionym)
   27. Species Ennea (Gulella) varians E. A. Smith, 1899 accepted as Gulella varians (E. A. Smith, 1899) (basionym)
   28. Species Ennea (Gulella) vicina E. A. Smith, 1899 accepted as Gulella vicina (E. A. Smith, 1899) (original combination)
   29. Species Ennea (Gulella) quinquedentata C. Boettger, 1913 represented as Ennea quinquedentata C. Boettger, 1913 accepted as Gulella planidens (E. von Martens, 1892) (basionym)
10. Subgenus Ennea (Huttonella) L. Pfeiffer, 1856 accepted as Gulella (Huttonella) L. Pfeiffer, 1856 represented as Gulella L. Pfeiffer, 1856 (original combination)
    1. Species Ennea (Huttonella) arthuri Dautzenberg, 1890 accepted as Gulella arthuri (Dautzenberg, 1890) (original combination)
    2. Species Ennea (Huttonella) bicolor (T. Hutton, 1834) accepted as Gulella bicolor (T. Hutton, 1834) (unaccepted > superseded combination)
    3. Species Ennea (Huttonella) cardiostoma Quadras & Möllendorff, 1894 accepted as Diaphera cardiostoma (Quadras & Möllendorff, 1894) (original combination)
    4. Species Ennea (Huttonella) cylindrelloidea Stoliczka, 1871 accepted as Diaphera cylindrelloidea (Stoliczka, 1871) (original combination)
    5. Species Ennea (Huttonella) fartoides (Theobald, 1870) accepted as Sinoennea fartoidea (Theobald, 1870) (incorrect subsequent spelling)
    6. Species Ennea (Huttonella) hidalgoi Möllendorff, 1888 accepted as Diaphera hidalgoi (Möllendorff, 1888) (basionym)
    7. Species Ennea (Huttonella) moerchiana G. Nevill, 1881 accepted as Sinoennea moerchiana (G. Nevill, 1881) (basionym)
    8. Species Ennea (Huttonella) nitidula Quadras & Möllendorff, 1894 accepted as Diaphera nitidula (Quadras & Möllendorff, 1894) (original combination)
    9. Species Ennea (Huttonella) otostoma Quadras & Möllendorff, 1894 accepted as Diaphera otostoma (Quadras & Möllendorff, 1894) (original combination)
    10. Species Ennea (Huttonella) seatoni R. H. Beddome, 1891 accepted as Diaphera seatoni (C. E. Beddome, 1891) (original combination)
    11. Species Ennea (Huttonella) sericina Möllendorff, 1887 accepted as Diaphera sericina (Möllendorff, 1887) (original combination)
11. Subgenus Ennea (Indoennea) Kobelt, 1904 accepted as Sinoennea Kobelt, 1904 (junior synonym)
12. Subgenus Ennea (Microstrophia) Möllendorff, 1887 accepted as Microstrophia Möllendorff, 1887
    1. Species Ennea (Microstrophia) cariei Germain, 1918 accepted as Microstrophia modesta (H. Adams, 1867)
    2. Species Ennea (Microstrophia) clavulata (Lamarck, 1822) accepted as Microstrophia clavulata (Lamarck, 1822)
    3. Species Ennea (Microstrophia) densecostata O. Boettger, 1892 accepted as Sinoennea densecostata (O. Boettger, 1892) (original combination)
    4. Species Ennea (Microstrophia) hungerfordiana Möllendorff, 1887 accepted as Sinoennea hungerfordiana (Möllendorff, 1887) (unaccepted > superseded combination)
    5. Species Ennea (Microstrophia) irregularis Möllendorff, 1900 accepted as Indoennea irregularis (Möllendorff, 1900) accepted as Sinoennea irregularis (Möllendorff, 1900) (original combination)
    6. Species Ennea (Microstrophia) malaccana Möllendorff, 1902 accepted as Sinoennea malaccana (Möllendorff, 1902) (original combination)
    7. Species Ennea (Microstrophia) modesta H. Adams, 1867 accepted as Microstrophia modesta (H. Adams, 1867) (unaccepted > superseded combination)
    8. Species Ennea (Microstrophia) perakensis Godwin-Austen & G. Nevill, 1879 accepted as Sinoennea perakensis (Godwin-Austen & G. Nevill, 1879) (unaccepted > superseded combination)
    9. Species Ennea (Microstrophia) plagiostoma Möllendorff, 1901 accepted as Sinoennea plagiostoma (Möllendorff, 1901) (original combination)
    10. Species Ennea (Microstrophia) subcylindrica Möllendorff, 1891 accepted as Sinoennea subcylindrica (Möllendorff, 1891) (original combination)
13. Subgenus Ennea (Passamaella) L. Pfeiffer, 1878 accepted as Passamaella L. Pfeiffer, 1878 (unaccepted > superseded rank)
14. Subgenus Ennea (Paucidentata) accepted as Gulella (Paucidentina) E. von Martens, 1897 represented as Gulella L. Pfeiffer, 1856 (spelling error)
    1. Species Ennea (Paucidentata) monodon Morelet, 1873 accepted as Paucidentella monodon (Morelet, 1873) (unaccepted > superseded combination)
15. Subgenus Ennea (Pseudelma) Kobelt, 1904 accepted as Pseudelma Kobelt, 1904 (original rank)
16. Subgenus Ennea (Ptychotrema) L. Pfeiffer, 1853 accepted as Ptychotrema L. Pfeiffer, 1853 (inverted precedence of genus and subgenus)
    1. Species Ennea (Ptychotrema) bassamensis E. A. Smith, 1894 accepted as Ptychotrema assiniense (Chaper, 1885) (junior synonym)
    2. Species Ennea (Ptychotrema) geminata E. von Martens, 1895 accepted as Ptychotrema geminatum (E. von Martens, 1895) (original combination)
    3. Species Ennea (Ptychotrema) quadrinodata E. von Martens, 1895 accepted as Ptychotrema quadrinodatum (E. von Martens, 1895) (original combination)
    4. Species Ennea (Ptychotrema) runsorana E. von Martens, 1892 accepted as Ptychotrema runsoranum (E. von Martens, 1892) (original combination)
    5. Species Ennea (Ptychotrema) supradentata Thiele, 1911 accepted as Ptychotrema supradentatum (Thiele, 1911) (original combination)
    6. Species Ennea (Ptychotrema) tullbergi d'Ailly, 1896 accepted as Ptychotrema anceyi (G. Nevill, 1890) (unaccepted > junior subjective synonym)
17. Subgenus Ennea (Sinoennea) Kobelt, 1904 accepted as Sinoennea Kobelt, 1904 (original rank)
    1. Species Ennea (Sinoennea) cava Pilsbry & Hirase, 1908 accepted as Sinoennea cava (Pilsbry & Hirase, 1908) (original combination)
    2. Species Ennea (Sinoennea) kermorganti Ancey, 1881 accepted as Sinoennea kermorganti (Ancey, 1881)
18. Subgenus Ennea (Sphinctostrema) Girard, 1894 accepted as Sphinctostrema Girard, 1894
    1. Species Ennea (Sphinctostrema) annobonensis Girard, 1894 accepted as Gastrocopta annobonensis (Girard, 1894) (basionym)
    2. Species Ennea (Sphinctostrema) bocagei Girard, 1894 accepted as Sphinctostrema bocagei (Girard, 1894) (basionym)
    3. Species Ennea (Sphinctostrema) joubini Germain, 1912 accepted as Sphinctostrema joubini (Germain, 1912) (basionym)
19. Subgenus Ennea (Uniplicaria) L. Pfeiffer, 1856 accepted as Gulella (Uniplicaria) L. Pfeiffer, 1856 represented as Gulella L. Pfeiffer, 1856 (unaccepted > superseded combination)
    1. Species Ennea (Uniplicaria) bongeensis d'Ailly, 1896 accepted as Gulella bongeensis (d'Ailly, 1896) (basionym)
    2. Species Ennea (Uniplicaria) exogonia E. von Martens, 1895 accepted as Gulella exogonia (E. von Martens, 1895) (basionym)
    3. Species Ennea (Uniplicaria) gemma d'Ailly, 1896 accepted as Gulella gemma (d'Ailly, 1896) (basionym)
    4. Species Ennea (Uniplicaria) gestroi Germain, 1915 accepted as Gulella gestroi (Germain, 1915) (basionym)
    5. Species Ennea (Uniplicaria) hamiltoni E. A. Smith, 1897 accepted as Austromarconia hamiltoni (E. A. Smith, 1897) (unaccepted > superseded combination)
    6. Species Ennea (Uniplicaria) kendigiana Rolle, 1892 accepted as Gulella kendigiana (Rolle, 1892) (basionym)
    7. Species Ennea (Uniplicaria) nemoralis Germain, 1915 accepted as Paucidentella nemoralis (Germain, 1915) (unaccepted > superseded combination)
20. Species Ennea aberdarensis Preston, 1913 accepted as Gulella aberdarensis (Preston, 1913) (original combination)
21. Species Ennea acicula Morelet, 1877 accepted as Streptostele acicula (Morelet, 1877) (original combination)
22. Species Ennea adamsiana L. Pfeiffer, 1859 accepted as Gulella adamsiana (L. Pfeiffer, 1859) accepted as Gulella menkeana (L. Pfeiffer, 1853) (unaccepted > junior subjective synonym)
23. Species Ennea adelpha Preston, 1913 accepted as Gulella vicina adelpha (Preston, 1913)
24. Species Ennea adjacens Preston, 1913 accepted as Costigulella adjacens (Preston, 1913) accepted as Aenigmigulella adjacens (Preston, 1913) (original combination)
25. Species Ennea aenigmatica E. A. Smith, 1890 accepted as Aenigmigulella aenigmatica (E. A. Smith, 1890) (original combination)
26. Species Ennea aequidentata E. A. Smith, 1890 accepted as Gulella aequidentata (E. A. Smith, 1890) (original combination)
27. Species Ennea affectata Fulton, 1902 accepted as Ptychotrema affectatum (Fulton, 1902) (original combination)
28. Species Ennea alauda Sykes accepted as Gulella gwendolinae aldabrae van Bruggen, 1975 (nomen nudum)
29. Species Ennea albida Putzeys, 1899 accepted as Streptostele horei E. A. Smith, 1890 (unaccepted > junior subjective synonym)
30. Species Ennea aliciae Melvill & Ponsonby, 1907 accepted as Gulella aliciae (Melvill & Ponsonby, 1907) (original combination)
31. Species Ennea aliena Bavay & Dautzenberg, 1912 accepted as Nagyelma aliena (Bavay & Dautzenberg, 1912) (original combination)
32. Species Ennea aloysiisabaudiae Pollonera, 1907 accepted as Gulella exogonia (E. von Martens, 1895) (junior synonym)
33. Species Ennea ambigua Sturany, 1898 accepted as Gulella minuta (Morelet, 1889) (unaccepted > junior subjective synonym)
34. Species Ennea amicta E. A. Smith, 1890 accepted as Gulella amicta (E. A. Smith, 1890) (original combination)
35. Species Ennea ampullacea Sturany, 1898 accepted as Gulella obovata (L. Pfeiffer, 1855) (synonym)
36. Species Ennea anceyi G. Nevill, 1890 accepted as Ptychotrema anceyi (G. Nevill, 1890) (original combination)
37. Species Ennea anodon L. Pfeiffer, 1855 accepted as Edentulina anodon (L. Pfeiffer, 1855) (original combination)
38. Species Ennea ansorgei Preston, 1910 accepted as Ptychotrema ansorgei (Preston, 1910) (original combination)
39. Species Ennea aperostoma Melvill & Ponsonby, 1892 accepted as Gulella aperostoma (Melvill & Ponsonby, 1892) (original combination)
40. Species Ennea arenicola Morelet, 1860 accepted as Edentulina arenicola (Morelet, 1860) (original combination)
41. Species Ennea arnoldi Sturany, 1898 accepted as Gulella arnoldi (Sturany, 1898) (original combination)
42. Species Ennea arthuri Preston, 1913 accepted as Gulella odhneriana Dupuis, 1923 (junior primary homonym of Ennea arthuri Dautzenberg, 1890; Gulella odhneriana Dupuis, 1923 is a replacement name.)
43. Species Ennea arthuri Dautzenberg, 1890 accepted as Gulella arthuri (Dautzenberg, 1890) (original combination)
44. Species Ennea atomaria Dautzenberg, 1894 accepted as Sinoennea atomaria (Dautzenberg, 1894) (original combination)
45. Species Ennea auriculata Morelet, 1881 accepted as Pseudelma auriculata (Morelet, 1881) (original combination)
46. Species Ennea aurisleporis Melvill & Ponsonby, 1898 accepted as Gulella menkeana (L. Pfeiffer, 1853) (synonym)
47. Species Ennea baccata Preston, 1913 accepted as Gulella baccata (Preston, 1913) (basionym)
48. Species Ennea balfouri Godwin-Austen, 1881 accepted as Passamaella balfouri (Godwin-Austen, 1881) (original combination)
49. Species Ennea batalhana L. Pfeiffer, 1871 accepted as Ptychotrema batalhana (L. Pfeiffer, 1871) (unaccepted > superseded combination)
50. Species Ennea beddomei W. T. Blanford, 1881 accepted as Rowsonia beddomei (W. T. Blanford, 1881) (original combination)
51. Species Ennea beddomii [sic] accepted as Rowsonia beddomei (W. T. Blanford, 1881) (unaccepted > misspelling - incorrect subsequent spelling, incorrect subsequent spelling and unaccepted combination)
52. Species Ennea bequaerti Dautzenberg & Germain, 1914 accepted as Ptychotrema bequaerti (Dautzenberg & Germain, 1914) (original combination)
53. Species Ennea berthae Melvill & Ponsonby, 1901 accepted as Gulella farquhari (Melvill & Ponsonby, 1895) (unaccepted > junior subjective synonym)
54. Species Ennea bicolor (T. Hutton, 1834) accepted as Gulella bicolor (T. Hutton, 1834) (unaccepted > superseded combination)
55. Species Ennea bicristata Morelet, 1873 accepted as Ptychotrema bicristata (Morelet, 1873) (original combination)
56. Species Ennea bionominis Sturany, 1898 accepted as Gulella pentodon (Morelet, 1889) (synonym)
57. Species Ennea blanfordiana Godwin-Austen, 1872 accepted as Sinoennea blanfordiana (Godwin-Austen, 1872) (original combination)
58. Species Ennea bourguignatiana Ancey, 1886 accepted as Gulella subringens (Crosse, 1886) (synonym)
59. Species Ennea bowkerae Melvill & Ponsonby, 1892 accepted as Gulella bowkerae (Melvill & Ponsonby, 1892) (original combination)
60. Species Ennea brevicollis W. T. Blanford, 1899 accepted as Diaphera brevicollis (W. T. Blanford, 1899) (original combination)
61. Species Ennea brevicula Morelet, 1882 accepted as Gulella brevicula (Morelet, 1882) (original combination)
62. Species Ennea brevis Thiele, 1911 accepted as Gulella brevis (Thiele, 1911) (original combination)
63. Species Ennea buccina Preston, 1913 accepted as Gonaxis vulcani (Thiele, 1911) (junior synonym)
64. Species Ennea buchholzi E. von Martens, 1876 accepted as Rhabdogulella buchholzi (E. von Martens, 1876) (original combination)
65. Species Ennea bulbulus Morelet, 1862 accepted as Oophana bulbulus (Morelet, 1862) (unaccepted > superseded combination)
66. Species Ennea bulimiformis Grandidier, 1887 accepted as Edentulina obesa bulimiformis (Grandidier, 1887)
67. Species Ennea burnupi Melvill & Ponsonby, 1897 accepted as Gulella burnupi (Melvill & Ponsonby, 1897) (original combination)
68. Species Ennea burungaensis Preston, 1913 accepted as Ennea disseminata Preston, 1913 accepted as Gulella disseminata (Preston, 1913) (junior synonym)
69. Species Ennea cairnsi Melvill & Ponsonby, 1897 accepted as Gulella cairnsi (Melvill & Ponsonby, 1897) (original combination)
70. Species Ennea calameli Jousseaume, 1872 accepted as Ptychotrema pupaeforme (Morelet, 1866) (unaccepted > junior subjective synonym)
71. Species Ennea callista Melvill & Ponsonby, 1909 accepted as Gulella mariae (Melvill & Ponsonby, 1892) (synonym)
72. Species Ennea callosa Morelet, 1881 accepted as Gulella callosa (Morelet, 1881) (original combination)
73. Species Ennea calopasa Melvill & Ponsonby, 1903 accepted as Gulella calopasa (Melvill & Ponsonby, 1903) (original combination)
74. Species Ennea calva Dautzenberg, 1894 accepted as Sinoennea calva (Dautzenberg, 1894) (original combination)
75. Species Ennea camerani Pollonera, 1906 accepted as Gulella camerani (Pollonera, 1906) (original combination)
76. Species Ennea canarica W. T. Blanford, 1881 accepted as Rowsonia canarica (W. T. Blanford, 1881) (original combination)
77. Species Ennea candidula Morelet, 1889 accepted as Gulella candidula (Morelet, 1889) (original combination)
78. Species Ennea carea Preston, 1913 accepted as Gulella carea (Preston, 1913) (original combination)
79. Species Ennea caroli Kobelt, 1913 accepted as Gulella caroli (Kobelt, 1913) (basionym)
80. Species Ennea caryatis Melvill & Ponsonby, 1898 accepted as Gulella caryatis (Melvill & Ponsonby, 1898) (original combination)
81. Species Ennea cavidens E. von Martens, 1876 accepted as Digulella cavidens (E. von Martens, 1876) (unaccepted > superseded combination)
82. Species Ennea cerea (Dunker, 1849) accepted as Gulella cerea (Dunker, 1849) (unaccepted > superseded combination)
83. Species Ennea ceylanica L. Pfeiffer, 1855 accepted as Gulella bicolor (T. Hutton, 1834) (junior synonym)
84. Species Ennea chaperi Jousseaume, 1872 accepted as Ptychotrema chaperi (Jousseaume, 1872) (unaccepted > superseded combination)
85. Species Ennea cimolia Melvill & Ponsonby, 1895 accepted as Gulella mariae (Melvill & Ponsonby, 1892) (synonym)
86. Species Ennea cionis Melvill & Ponsonby, 1898 accepted as Gulella minuta (Morelet, 1889) (unaccepted > junior subjective synonym)
87. Species Ennea circumcisa Morelet, 1885 accepted as Ptychotrema circumcisum (Morelet, 1885) (original combination)
88. Species Ennea claustraria Melvill & Ponsonby, 1903 accepted as Gulella infrendens (E. von Martens, 1866) (unaccepted > junior subjective synonym)
89. Species Ennea claustrum Preston, 1913 accepted as Gulella claustrum (Preston, 1913) (original combination)
90. Species Ennea coarti Dautzenberg & Germain, 1914 accepted as Gulella coarti (Dautzenberg & Germain, 1914) (original combination)
91. Species Ennea coeni Preston, 1913 accepted as Gulella coeni (Preston, 1913) (original combination)
92. Species Ennea collieri Melvill & Ponsonby, 1893 accepted as Gulella infans (Craven, 1881) (synonym)
93. Species Ennea columella E. A. Smith, 1903 accepted as Gulella columella (E. A. Smith, 1903) (original combination)
94. Species Ennea columellaris E. von Martens, 1876 accepted as Ptychotrema columellare (E. von Martens, 1876) (original combination)
95. Species Ennea columnella Melvill & Ponsonby, 1901 accepted as Gulella columnella (Melvill & Ponsonby, 1901) (original combination)
96. Species Ennea commoda E. A. Smith, 1903 accepted as Gulella commoda (E. A. Smith, 1903) (original combination)
97. Species Ennea comorensis E. von Martens, 1876 accepted as Gulella comorensis (E. von Martens, 1876) (original combination)
98. Species Ennea complicata E. von Martens, 1876 accepted as Ptychotrema complicatum (E. von Martens, 1876) (original combination)
99. Species Ennea conica E. von Martens, 1876 accepted as Paucidentella conica (E. von Martens, 1876) (original combination)
100. Species Ennea connollyi Melvill & Ponsonby, 1909 accepted as Gulella connollyi (Melvill & Ponsonby, 1909) (original combination)
101. Species Ennea conospira E. von Martens, 1892 accepted as Gulella conospira (E. von Martens, 1892) (unaccepted > superseded combination)
102. Species Ennea conradti E. von Martens, 1895 accepted as Gulella conradti (E. von Martens, 1895) (original combination)
103. Species Ennea consanguinea E. A. Smith, 1890 accepted as Gulella consanguinea (E. A. Smith, 1890) (original combination)
104. Species Ennea consobrina Ancey, 1892 accepted as Gulella consobrina (Ancey, 1892) (original combination)
105. Species Ennea consobrina Preston, 1911 accepted as Ennea syngenes Preston, 1913 accepted as Gulella syngenes (Preston, 1913) accepted as Gulella commoda syngenes (Preston, 1913) (junior primary homonym of Ennea consobrina Ancey, 1892; Ennea syngenes Preston, 1913 is a replacement name)
106. Species Ennea consociata E. A. Smith, 1890 accepted as Gulella consociata (E. A. Smith, 1890) (original combination)
107. Species Ennea copiosa Preston, 1913 accepted as Gulella copiosa (Preston, 1913) (original combination)
108. Species Ennea corneola Morelet, 1886 accepted as Gulella corneola (Morelet, 1886) (original combination)
109. Species Ennea costellata Morelet, 1882 accepted as Gulella costellata (Morelet, 1882) (original combination)
110. Species Ennea crassidens L. Pfeiffer, 1859 accepted as Gulella crassidens (L. Pfeiffer, 1859) (original combination)
111. Species Ennea crassilabris Craven, 1881 accepted as Gulella crassilabris (Craven, 1881) (original combination)
112. Species Ennea craterodon Melvill & Ponsonby, 1903 (unaccepted, original combination)
113. Species Ennea crawfordi Melvill & Ponsonby, 1898 (unaccepted > junior subjective synonym)
114. Species Ennea crispula Melvill & Ponsonby, 1909 (unaccepted > junior subjective synonym)
115. Species Ennea crosseana Morelet, 1881 (unaccepted, original combination)
116. Species Ennea crossleyana Melvill & Ponsonby, 1893 (unaccepted, synonym)
117. Species Ennea cruciata E. von Martens, 1900 (unaccepted, original combination)
118. Species Ennea cryptophora Morelet, 1881 (unaccepted, original combination)
119. Species Ennea curvicolumella Preston, 1913 (unaccepted, original combination)
120. Species Ennea curvilamella E. A. Smith, 1890 (unaccepted, original combination)
121. Species Ennea cyathostoma L. Pfeiffer, 1856 (unaccepted, chresonym)
122. Species Ennea daedalea Melvill & Ponsonby, 1903 (unaccepted, original combination)
123. Species Ennea darglensis Melvill & Ponsonby, 1908 (unaccepted, original combination)
124. Species Ennea decussatula Preston, 1913 (unaccepted, original combination)
125. Species Ennea delicatula L. Pfeiffer, 1857 (unaccepted, original combination)
126. Species Ennea delicatula Preston, 1910 (unaccepted, invalid: junior primary homonym of Ennea delicatula L. Pfeiffer, 1857; Gulella prestoni Connolly, 1922 is a replacement name.)
127. Species Ennea demangei Bavay & Dautzenberg, 1912 (unaccepted, original combination)
128. Species Ennea denticulata Morelet, 1872 (unaccepted > superseded combination)
129. Species Ennea dentiens Morelet, 1883 (unaccepted, original combination)
130. Species Ennea differens Sturany, 1898 (unaccepted, synonym)
131. Species Ennea diodon Morelet, 1882 (unaccepted, original combination)
132. Species Ennea disseminata Preston, 1913 (unaccepted, original combination)
133. Species Ennea distincta Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
134. Species Ennea docimasta (unaccepted > unjustified emendation)
135. Species Ennea dohrni E. von Martens, 1882 (unaccepted, Invalid: junior primary homonym of Ennea dohrni E. A. Smith, 1882)
136. Species Ennea dohrni E. A. Smith, 1882 (unaccepted > superseded combination)
137. Species Ennea dokimasta Melvill & Ponsonby, 1898 (unaccepted > junior subjective synonym)
138. Species Ennea dolichoskia Melvill & Ponsonby, 1892 (unaccepted > junior subjective synonym)
139. Species Ennea doliolum Morelet, 1873 (unaccepted, original combination)
140. Species Ennea doliolum Heude, 1885 (unaccepted, junior homonym of Ennea doliolum Morelet, 1873)
141. Species Ennea dorri Dautzenberg, 1890 (unaccepted, original combination)
142. Species Ennea drakensbergensis Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
143. Species Ennea dunkeri L. Pfeiffer, 1856 (unaccepted > superseded combination)
144. Species Ennea dupuyana Crosse, 1876 (unaccepted, original combination)
145. Species Ennea durbanensis Sturany, 1898 (unaccepted > junior subjective synonym)
146. Species Ennea elegantula (L. Pfeiffer, 1847) (unaccepted)
147. Species Ennea elgonensis Preston, 1913 (unaccepted, original combination)
148. Species Ennea elliptica Melvill & Ponsonby, 1898 (unaccepted > superseded combination)
149. Species Ennea eshowensis Melvill & Ponsonby, 1909 (unaccepted > junior subjective synonym)
150. Species Ennea euschemon Melvill & Ponsonby, 1909 (unaccepted > junior subjective synonym)
151. Species Ennea eussoensis Preston, 1913 (unaccepted, original combination)
152. Species Ennea euthymia Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
153. Species Ennea excavata E. von Martens, 1892 (unaccepted, original combination)
154. Species Ennea exilis W. T. Blanford, 1881 (unaccepted, original combination)
155. Species Ennea eximia Melvill & Ponsonby, 1898 (unaccepted > junior subjective synonym)
156. Species Ennea fargesiana Heude, 1890 (unaccepted, original combination)
157. Species Ennea farquhari Melvill & Ponsonby, 1895 (unaccepted > superseded combination)
158. Species Ennea filicosta (Morelet, 1867) (unaccepted > superseded combination)
159. Species Ennea foliifera E. von Martens, 1895 (unaccepted, original combination)
160. Species Ennea foriclusa Melvill & Ponsonby, 1901 (unaccepted > junior subjective synonym)
161. Species Ennea formica Bavay & Dautzenberg, 1912 (unaccepted, original combination)
162. Species Ennea formosa Melvill & Ponsonby, 1898 (unaccepted, original combination)
163. Species Ennea fortidentata E. A. Smith, 1890 (unaccepted, original combination)
164. Species Ennea foveolata Preston, 1913 (unaccepted, original combination)
165. Species Ennea fuchsi Gredler, 1885 (unaccepted, original combination)
166. Species Ennea fultoni Bavay & Dautzenberg, 1912 (unaccepted, original combination)
167. Species Ennea funerea Preston, 1913 (unaccepted, original combination)
168. Species Ennea galactochila Crosse, 1886 (unaccepted, original combination)
169. Species Ennea gardineri Sykes, 1909 (unaccepted, original combination)
170. Species Ennea genialis Melvill & Ponsonby, 1903 (unaccepted > superseded combination)
171. Species Ennea girardi Germain, 1915 (unaccepted, Invalid; junior primary homonym of Ennea girardi Kobelt, 1904; Gulella germaini Connolly, 19129 ids a replacement name.)
172. Species Ennea glabra Morelet, 1882 (unaccepted, original combination)
173. Species Ennea gonzalezi Azpeitia, 1923 (unaccepted, junior synonym)
174. Species Ennea gouldi L. Pfeiffer, 1856 (unaccepted, original combination)
175. Species Ennea gravieri Germain, 1907 (unaccepted, original combination)
176. Species Ennea grossa E. von Martens, 1892 (unaccepted, original combination)
177. Species Ennea gwendolinae Preston, 1910 (unaccepted, original combination)
178. Species Ennea hamiltoni E. A. Smith, 1897 (unaccepted, original combination)
179. Species Ennea hanningtoni E. A. Smith, 1890 (unaccepted, synonym)
180. Species Ennea haullevillei Dautzenberg & Germain, 1914 (unaccepted, original combination)
181. Species Ennea hector Preston, 1913 (unaccepted, original combination)
182. Species Ennea hickeyana Melvill & Ponsonby, 1901 (unaccepted, synonym)
183. Species Ennea hidalgoi Möllendorff, 1888 (unaccepted, original combination)
184. Species Ennea hidalgoi Girard, 1894 (unaccepted, invalid: junior primary homonym of Ennea hidalgoi Mollendorff, 1888)
185. Species Ennea himerothales Melvill & Ponsonby, 1903 (unaccepted > superseded combination)
186. Species Ennea hippocrepis Bavay & Dautzenberg, 1912 (unaccepted, original combination)
187. Species Ennea hordeum Morelet, 1879 (unaccepted, original combination)
188. Species Ennea humbloti Morelet, 1886 (unaccepted, original combination)
189. Species Ennea hungerfordiana Möllendorff, 1887 (unaccepted, original combination)
190. Species Ennea hypsoma Melvill & Ponsonby, 1909 (unaccepted > junior subjective synonym)
191. Species Ennea impervia Melvill & Ponsonby, 1896 (unaccepted > junior subjective synonym)
192. Species Ennea incisa Morelet, 1881 (unaccepted, original combination)
193. Species Ennea inconspicua Thiele, 1911 (unaccepted, original combination)
194. Species Ennea infans Craven, 1881 (unaccepted, original combination)
195. Species Ennea ingens Sturany, 1898 (unaccepted, original combination)
196. Species Ennea ingeziensis Preston, 1913 (unaccepted, junior synonym)
197. Species Ennea ingloria Preston, 1913 (unaccepted, original combination)
198. Species Ennea inhluzaniensis Burnup, 1914 (unaccepted, original combination)
199. Species Ennea innocens Preston, 1913 (unaccepted, original combination)
200. Species Ennea insignis L. Pfeiffer, 1857 (unaccepted, original combination)
201. Species Ennea insolita E. A. Smith, 1903 (unaccepted, original combination)
202. Species Ennea instabilis Sturany, 1898 (unaccepted, original combination)
203. Species Ennea insularis Girard, 1894 (unaccepted, original combination)
204. Species Ennea insulsa Preston, 1913 (unaccepted, junior synonym)
205. Species Ennea intradentata Preston, 1913 (unaccepted, original combination)
206. Species Ennea iota Preston, 1911 (unaccepted, junior synonym)
207. Species Ennea iredalei Preston, 1911 (unaccepted, synonym)
208. Species Ennea iridescens Preston, 1913 (unaccepted, original combination)
209. Species Ennea isipingoensis Sturany, 1898 (unaccepted, original combination)
210. Species Ennea isseli Paladilhe, 1872 (unaccepted, original combination)
211. Species Ennea iwakawa Pilsbry, 1900 (unaccepted, original combination)
212. Species Ennea jeanneli Dautzenberg & Germain, 1914 (unaccepted, original combination)
213. Species Ennea jod Preston, 1910 (unaccepted, original combination)
214. Species Ennea johannesburgensis Melvill & Ponsonby, 1907 (unaccepted > superseded combination)
215. Species Ennea johnstoni E. A. Smith, 1894 (unaccepted, Considered a junior secondary homonym of Gibbus (Edentulia) johnstoni E. A. Smith, 1887 and replaced by Ennea hamiltoni E. A. Smith, 1897)
216. Species Ennea jombeneensis Preston, 1913 (unaccepted, original combination)
217. Species Ennea joubini Dautzenberg & Germain, 1914 (unaccepted, junior primary homonym (non Ennea joubini Germain, 1912))
218. Species Ennea joubini Germain, 1912 (unaccepted, original combination)
219. Species Ennea juxtidens Melvill & Ponsonby, 1899 (unaccepted > superseded combination)
220. Species Ennea karongana E. A. Smith, 1894 (unaccepted, junior synonym)
221. Species Ennea keniana Preston, 1911 (unaccepted, junior synonym)
222. Species Ennea kermorganti Ancey, 1881 (unaccepted)
223. Species Ennea kigeziensis Preston, 1913 (unaccepted > superseded combination)
224. Species Ennea kivuensis Preston, 1913 (unaccepted, original combination)
225. Species Ennea kochiana Möllendorff, 1888 (unaccepted)
226. Species Ennea kombaensis Preston, 1913 (unaccepted, original combination)
227. Species Ennea kosiensis Melvill & Ponsonby, 1908 (unaccepted > superseded combination)
228. Species Ennea kraussi L. Pfeiffer, 1856 (unaccepted, original combination)
229. Species Ennea kungwensis (Verdcourt, 1961) (unaccepted, unaccepted combination )
230. Species Ennea labyrinthea Melvill & Ponsonby, 1895 (unaccepted > junior subjective synonym)
231. Species Ennea lacuna Preston, 1911 (unaccepted, original combination)
232. Species Ennea laevigata Dohrn, 1865 (unaccepted, original combination)
233. Species Ennea lamyi Dautzenberg & Germain, 1914 (unaccepted, original combination)
234. Species Ennea landianiensis Dautzenberg, 1908 (unaccepted, original combination)
235. Species Ennea laqueus Preston, 1913 (unaccepted, original combination)
236. Species Ennea larva Morelet, 1877 (unaccepted, original combination)
237. Species Ennea lata E. A. Smith, 1880 (unaccepted, original combination)
238. Species Ennea latula E. von Martens, 1895 (unaccepted, original combination)
239. Species Ennea layardi Ancey, 1890 (unaccepted)
240. Species Ennea lendix E. A. Smith, 1890 (unaccepted, original combination)
241. Species Ennea leppani Sturany, 1898 (unaccepted, synonym)
242. Species Ennea lima Preston, 1913 (unaccepted, original combination)
243. Species Ennea limbata E. von Martens, 1892 (unaccepted, original combination)
244. Species Ennea longula E. A. Smith, 1894 (unaccepted)
245. Species Ennea lubrica Morelet, 1881 (unaccepted, original combination)
246. Species Ennea macrodon W. T. Blanford, 1881 (unaccepted, original combination)
247. Species Ennea macrodonta Bavay & Dautzenberg, 1912 (unaccepted, original combination)
248. Species Ennea magnolia Connolly, 1912 (unaccepted, original combination)
249. Species Ennea malasangiensis Preston, 1913 (unaccepted, original combination)
250. Species Ennea margarettae Melvill & Ponsonby, 1895 (unaccepted, original combination)
251. Species Ennea margarita Preston, 1913 (unaccepted, original combination)
252. Species Ennea mariae Melvill & Ponsonby, 1892 (unaccepted > superseded combination)
253. Species Ennea mariei Morelet, 1881 (unaccepted, junior synonym)
254. Species Ennea marionae Preston, 1910 (unaccepted, original combination)
255. Species Ennea maritzburgensis Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
256. Species Ennea martensi d'Ailly, 1896 (unaccepted, invalid; not E. A. Smith, 1882, no replacement name is available)
257. Species Ennea martensi E. A. Smith, 1882 (unaccepted > superseded combination)
258. Species Ennea martensiana Morelet, 1881 (unaccepted > superseded combination)
259. Species Ennea masakaensis Preston, 1913 (unaccepted, original combination)
260. Species Ennea melvilli Burnup, 1914 (unaccepted, original combination)
261. Species Ennea meneleki Preston, 1910 (unaccepted, original combination)
262. Species Ennea metula Crosse, 1881 (unaccepted, original combination)
263. Species Ennea michaui Crosse & Fischer, 1863 (unaccepted, original combination)
264. Species Ennea microdina Morelet, 1883 (unaccepted, original combination)
265. Species Ennea microdon Morelet, 1860 (unaccepted, original combination)
266. Species Ennea micropleuris Möllendorff, 1887 (unaccepted > superseded combination)
267. Species Ennea microstoma E. A. Smith, 1890 (unaccepted, junior secondary homonym of Ennea microstoma (Möllendorff, 1881); Ennea strictilabris Ancey, 1898 is a replacement name.)
268. Species Ennea microstoma (Möllendorff, 1881) (unaccepted > superseded combination)
269. Species Ennea microstriata Preston, 1912 (unaccepted, original combination)
270. Species Ennea microthauma Melvill & Ponsonby, 1899 (unaccepted > junior subjective synonym)
271. Species Ennea mikenoensis Preston, 1913 (unaccepted, original combination)
272. Species Ennea milium Godwin-Austen, 1876 (unaccepted > superseded combination)
273. Species Ennea minuta Morelet, 1889 (unaccepted > superseded combination)
274. Species Ennea minutissima Thiele, 1911 (unaccepted, original combination)
275. Species Ennea mirifica Preston, 1913 (unaccepted, original combination)
276. Species Ennea modioliformis Morelet, 1877 (unaccepted, original combination)
277. Species Ennea moerchiana G. Nevill, 1881 (unaccepted, original combination)
278. Species Ennea mollendorffi Hidalgo, 1890 (unaccepted, original combination)
279. Species Ennea monodon Morelet, 1873 (unaccepted, original combination)
280. Species Ennea montana Melvill & Ponsonby, 1903 (unaccepted > junior subjective synonym)
281. Species Ennea monticola Preston, 1913 (unaccepted, junior synonym)
282. Species Ennea mooiensis Burnup, 1914 (unaccepted, original combination)
283. Species Ennea morleti Hidalgo, 1890 (unaccepted, original combination)
284. Species Ennea mucronata E. von Martens, 1876 (unaccepted)
285. Species Ennea multidentata Sturany, 1898 (unaccepted, original combination)
286. Species Ennea munita Melvill & Ponsonby, 1892 (unaccepted > superseded combination)
287. Species Ennea mutandaensis Preston, 1913 (unaccepted, junior synonym)
288. Species Ennea mweruensis Preston, 1913 (unaccepted, original combination)
289. Species Ennea nagaensis W. T. Blanford, 1899 (unaccepted, original combination)
290. Species Ennea naivashaensis Preston, 1911 (unaccepted, original combination)
291. Species Ennea natalensis Craven, 1881 (unaccepted, original combination)
292. Species Ennea natalensis Morelet, 1889 (unaccepted, junior primary homonym (non Ennea natalensis Craven, 1881))
293. Species Ennea newtoni E. A. Smith, 1890 (unaccepted, original combination)
294. Species Ennea nigeriensis de Winter & de Gier, 2019 (unaccepted, original combination)
295. Species Ennea nonotiensis Melvill & Ponsonby, 1894 (unaccepted > junior subjective synonym)
296. Species Ennea nyangweense Putzeys, 1899 (unaccepted, original combination)
297. Species Ennea nyikaensis Preston, 1913 (unaccepted, original combination)
298. Species Ennea nyiroensis Preston, 1913 (unaccepted, original combination)
299. Species Ennea obesa (J. W. Taylor, 1877) (unaccepted > superseded combination)
300. Species Ennea obovata L. Pfeiffer, 1855 (unaccepted, original combination)
301. Species Ennea oleacea Fulton, 1903 (unaccepted > superseded combination)
302. Species Ennea opoboensis Preston, 1914 (unaccepted > superseded combination)
303. Species Ennea oppugnans Melvill & Ponsonby, 1909 (unaccepted > junior subjective synonym)
304. Species Ennea optata Preston, 1911 (unaccepted, junior synonym)
305. Species Ennea orestias Tomlin, 1910 (unaccepted, original combination)
306. Species Ennea oryza Morelet, 1882 (unaccepted, original combination)
307. Species Ennea ovalis Thiele, 1911 (unaccepted, original combination)
308. Species Ennea ovularis Morelet, 1886 (unaccepted, original combination)
309. Species Ennea ovulum Bavay & Dautzenberg, 1912 (unaccepted, original combination)
310. Species Ennea papillifera Jickeli, 1873 (unaccepted > junior subjective synonym)
311. Species Ennea papyracea Preston, 1913 (unaccepted, original combination)
312. Species Ennea paradoxula E. von Martens, 1895 (unaccepted > superseded combination)
313. Species Ennea parallela Melvill & Ponsonby, 1909 (unaccepted > junior subjective synonym)
314. Species Ennea peculiaris E. A. Smith, 1890 (unaccepted, original combination)
315. Species Ennea peilei Preston, 1914 (unaccepted, original combination)
316. Species Ennea pentheri Sturany, 1898 (unaccepted, original combination)
317. Species Ennea pentodon Morelet, 1889 (unaccepted, original combination)
318. Species Ennea perakensis Godwin-Austen & G. Nevill, 1879 (unaccepted, original combination)
319. Species Ennea percivali Preston, 1913 (unaccepted, original combination)
320. Species Ennea pergrata Preston, 1913 (unaccepted, original combination)
321. Species Ennea periploca Melvill & Ponsonby, 1909 (unaccepted > junior subjective synonym)
322. Species Ennea perissodonta Sturany, 1898 (unaccepted, original combination)
323. Species Ennea perspicua Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
324. Species Ennea perspicuaeformis Sturany, 1898 (unaccepted, original combination)
325. Species Ennea perturbata Preston, 1913 (unaccepted, junior synonym)
326. Species Ennea pervitrea Preston, 1913 (unaccepted, original combination)
327. Species Ennea phanerodon Morelet, 1888 (unaccepted, original combination)
328. Species Ennea phragma Melvill & Ponsonby, 1907 (unaccepted > superseded combination)
329. Species Ennea pilula Preston, 1911 (unaccepted, original combination)
330. Species Ennea planidens E. von Martens, 1892 (unaccepted, original combination)
331. Species Ennea planti L. Pfeiffer, 1856 (unaccepted, original combination)
332. Species Ennea plicigera Morelet, 1886 (unaccepted, original combination)
333. Species Ennea polita Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
334. Species Ennea pollonerae Preston, 1913 (unaccepted > superseded combination)
335. Species Ennea ponsonbyi Burnup, 1914 (unaccepted, original combination)
336. Species Ennea porrecta E. von Martens, 1884 (unaccepted, original combination)
337. Species Ennea premnodes Sturany, 1902 (unaccepted, original combination)
338. Species Ennea pretiosa Preston, 1911 (unaccepted, original combination)
339. Species Ennea princei Preston, 1911 (unaccepted, original combination)
340. Species Ennea prodigiosa E. A. Smith, 1903 (unaccepted, original combination)
341. Species Ennea pulchella Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
342. Species Ennea pupa Thiele, 1911 (unaccepted, original combination)
343. Species Ennea pupaeformis Morelet, 1866 (unaccepted, original combination)
344. Species Ennea pusilla Morelet, 1889 (unaccepted, junior primary homonym (non Ennea pusilla Morelet, 1881))
345. Species Ennea pusilla Morelet, 1881 (unaccepted, original combination)
346. Species Ennea quadridentata E. von Martens, 1876 (unaccepted, synonym)
347. Species Ennea quadrilateralis Preston, 1910 (unaccepted, original combination)
348. Species Ennea queketti Melvill & Ponsonby, 1896 (unaccepted > superseded combination)
349. Species Ennea quinquedentata C. Boettger, 1913 (unaccepted, junior synonym)
350. Species Ennea radius Preston, 1910 (unaccepted, original combination)
351. Species Ennea raffrayi Bourguignat, 1883 (unaccepted, original combination)
352. Species Ennea rectangularis Preston, 1913 (unaccepted, original combination)
353. Species Ennea reesi Preston, 1914 (unaccepted, original combination)
354. Species Ennea regularis Melvill & Ponsonby, 1893 (unaccepted > junior subjective synonym)
355. Species Ennea reniformis Preston, 1913 (unaccepted, original combination)
356. Species Ennea rhodesiana Connolly, 1912 (unaccepted, original combination)
357. Species Ennea ringens Crosse, 1886 (unaccepted, junior primary homonym of Ennea ringens H. Adams, 1870; Ennea subringens Crosse, 1886 is a replacement name.)
358. Species Ennea ringens H. Adams, 1870 (unaccepted > superseded combination)
359. Species Ennea ringicula Morelet, 1867 (unaccepted, original combination)
360. Species Ennea roberti Preston, 1910 (unaccepted, original combination)
361. Species Ennea roccatii Pollonera, 1906 (unaccepted > junior subjective synonym)
362. Species Ennea rogersi Melvill & Ponsonby, 1898 (unaccepted > superseded combination)
363. Species Ennea rosenbergiana Preston, 1910 (unaccepted, junior synonym)
364. Species Ennea salemensis W. T. Blanford & H. F. Blanford, 1861 (unaccepted, original combination)
365. Species Ennea salmensis W. T. Blanford & H. F. Blanford, 1861 (unaccepted, misspelling of original name)
366. Species Ennea sambourouensis Dautzenberg, 1908 (unaccepted)
367. Species Ennea schweinfurthi Thiele, 1910 (unaccepted, original combination)
368. Species Ennea scrobiculata Melvill & Ponsonby, 1892 (unaccepted > junior subjective synonym)
369. Species Ennea sculpta W. T. Blanford, 1869 (unaccepted, original combination)
370. Species Ennea sejuncta Sturany, 1898 (unaccepted, synonym)
371. Species Ennea sellae Pollonera, 1906 (unaccepted, original combination)
372. Species Ennea separata Sturany, 1898 (unaccepted, original combination)
373. Species Ennea serrata d'Ailly, 1896 (unaccepted, original combination)
374. Species Ennea sesamum Morelet, 1883 (unaccepted, original combination)
375. Species Ennea simplicima Preston, 1911 (unaccepted, original combination)
376. Species Ennea socratica Melvill & Ponsonby, 1893 (unaccepted, synonym)
377. Species Ennea somaliensis E. A. Smith, 1899 (unaccepted, original combination)
378. Species Ennea soror E. A. Smith, 1890 (unaccepted, original combination)
379. Species Ennea spatium Preston, 1913 (unaccepted, original combination)
380. Species Ennea sperabile Preston, 1910 (unaccepted, original combination)
381. Species Ennea splendens Möllendorff, 1882 (unaccepted, original combination)
382. Species Ennea spreta Morelet, 1883 (unaccepted, original combination)
383. Species Ennea stauroma Melvill & Ponsonby, 1907 (unaccepted > junior subjective synonym)
384. Species Ennea stenopylis W. H. Benson, 1860 (unaccepted, original combination)
385. Species Ennea stenostoma W. T. Blanford, 1881 (unaccepted > junior subjective synonym)
386. Species Ennea strictilabris Ancey, 1898 (unaccepted)
387. Species Ennea strophiodes (Gredler, 1881) (unaccepted > superseded combination)
388. Species Ennea stuhlmanni E. von Martens, 1892 (unaccepted, original combination)
389. Species Ennea stylodon E. von Martens, 1876 (unaccepted, original combination)
390. Species Ennea suavissima Preston, 1913 (unaccepted, original combination)
391. Species Ennea subcostulata W. T. Blanford, 1881 (unaccepted, original combination)
392. Species Ennea subflavescens E. A. Smith, 1890 (unaccepted, original combination)
393. Species Ennea subhyalina E. A. Smith, 1890 (unaccepted, original combination)
394. Species Ennea subringens Crosse, 1886 (unaccepted, original combination)
395. Species Ennea sulcifera Morelet, 1884 (unaccepted, original combination)
396. Species Ennea swinhoei H. Adams, 1866 (unaccepted, original combination)
397. Species Ennea sylvia Melvill & Ponsonby, 1903 (unaccepted > superseded combination)
398. Species Ennea syngenes Preston, 1913 (unaccepted, original combination)
399. Species Ennea tharfieldensis Melvill & Ponsonby, 1893 (unaccepted > superseded combination)
400. Species Ennea thelodonta Melvill & Ponsonby, 1892 (unaccepted > junior subjective synonym)
401. Species Ennea thomasseti Sykes, 1909 (unaccepted, original combination)
402. Species Ennea tomlini Preston, 1911 (unaccepted, original combination)
403. Species Ennea transiens Sturany, 1898 (unaccepted, synonym)
404. Species Ennea triglochis Melvill & Ponsonby, 1903 (unaccepted > superseded combination)
405. Species Ennea trigona Morelet, 1881 (unaccepted, original combination)
406. Species Ennea trigonostoma E. von Martens, 1876 (unaccepted, original combination)
407. Species Ennea triplicaria [sic] (unaccepted, misspelling of specific epithet)
408. Species Ennea tudes E. von Martens, 1895 (unaccepted, original combination)
409. Species Ennea tumida Morelet, 1860 (unaccepted, junior synonym)
410. Species Ennea turennei H. Neuville & R. Anthony, 1905 (unaccepted, original combination)
411. Species Ennea turricula W. T. Blanford, 1899 (unaccepted, original combination)
412. Species Ennea ugandensis E. A. Smith, 1901 (unaccepted, original combination)
413. Species Ennea ujijiensis E. A. Smith, 1880 (unaccepted, original combination)
414. Species Ennea unilirata E. A. Smith, 1903 (unaccepted, original combination)
415. Species Ennea usagarica Crosse, 1886 (unaccepted, original combination)
416. Species Ennea usambarica (Craven, 1880) (unaccepted > superseded combination)
417. Species Ennea vallaris Melvill & Ponsonby, 1907 (unaccepted > superseded combination)
418. Species Ennea vandenbroeckii Melvill & Ponsonby, 1893 (unaccepted, synonym)
419. Species Ennea vanstaadensis Melvill & Ponsonby, 1893 (unaccepted > junior subjective synonym)
420. Species Ennea vara (W. H. Benson, 1859) (unaccepted, unaccepted combination)
421. Species Ennea vermis Morelet, 1881 (unaccepted, original combination)
422. Species Ennea viatoris Preston, 1913 (unaccepted, original combination)
423. Species Ennea virgo Melvill & Ponsonby, 1903 (unaccepted, synonym)
424. Species Ennea vitrea Morelet, 1867 (unaccepted, original combination)
425. Species Ennea vitrea Morelet, 1886 (unaccepted, junior primary homonym of Ennea vitrea Morelet, 1867; Gulella transnominata Connolly, 1925 is a replacement name)
426. Species Ennea vitreola Melvill & Ponsonby, 1908 (unaccepted > junior subjective synonym)
427. Species Ennea vriesiana Ancey, 1885 (unaccepted > superseded combination)
428. Species Ennea warreni Melvill & Ponsonby, 1903 (unaccepted > superseded combination)
429. Species Ennea woodhousei Preston, 1913 (unaccepted, original combination)
430. Species Ennea wottoni Melvill & Ponsonby, 1895 (unaccepted > junior subjective synonym)
431. Species Ennea xysila Melvill & Ponsonby, 1907 (unaccepted > superseded combination)
432. Species Ennea zanguebarica Morelet, 1889 (unaccepted, junior synonym)
433. Species Ennea zelota Melvill & Ponsonby, 1907 (unaccepted, original combination)
434. Species Ennea angolensis Nobre, 1905 (uncertain > taxon inquirendum, species not discussed in recent literature)
435. Species Ennea carquejai Nobre, 1905 (uncertain > taxon inquirendum, species not discussed in recent literature)
436. Species Ennea cylindracea E. A. Smith, 1897 (uncertain > taxon inquirendum)
437. Species Ennea dolium Heude, 1885 (uncertain > taxon inquirendum)
438. Species Ennea reeveana L. Pfeiffer, 1855 (uncertain > taxon inquirendum, not assessed)
439. Species Ennea taylori J. S. Gibbons, 1879 (uncertain > taxon inquirendum)

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