1. Species Monodacna acuticosta (Logvinenko & Starobogatov, 1967)
2. Species Monodacna albida (Logvinenko & Starobogatov, 1967)
3. Species Monodacna alizadei Nevesskaja, 1997 †
4. Species Monodacna apscheronica K. A. Ali-Zade, 1945 †
5. Species Monodacna azerbajdjanica A. A. Ali-Zade & Aleskerov, 1967 †
6. Species Monodacna beibatica Andrusov, 1923 †
7. Species Monodacna bogatschevi A. A. Ali-Zade & Aleskerov, 1967 †
8. Species Monodacna caspia (Eichwald, 1829)
9. Species Monodacna catilloides Andrusov, 1923 †
10. Species Monodacna colorata (Eichwald, 1829)
11. Species Monodacna dubia Andrusov, 1923 †
12. Species Monodacna fedrighinii (Capellini, 1879) †
13. Species Monodacna giaurtepica Ruzhentsev, 1928 †
14. Species Monodacna goesdekiana Andrusov, 1923 †
15. Species Monodacna gracilis (A. A. Ali-Zade & Aleskerov, 1969) †
16. Species Monodacna imrei Wesselingh & Alçiçek, 2010 †
17. Species Monodacna incipiens (Andrusov, 1923) †
18. Species Monodacna kabristanica Andrusov, 1923 †
19. Species Monodacna laevigata Andrusov, 1923 †
20. Species Monodacna monopteris (A. A. Ali-Zade & Aleskerov, 1969) †
21. Species Monodacna nitida Andrusov, 1923 †
22. Species Monodacna polymorpha (Logvinenko & Starobogatov, 1967)
23. Species Monodacna pontica Eichwald, 1838
24. Species Monodacna porsugelica Astaf'yeva, 1960 †
25. Species Monodacna praelaeviuscula (Andrusov, 1923) †
26. Species Monodacna pseudocolorata Büyükmeriç & Wesselingh, 2018 †
27. Species Monodacna schatskii Ruzhentsev, 1928 †
28. Species Monodacna semipellucida (Logvinenko & Starobogatov, 1967)
29. Species Monodacna sjoegreni Andrusov, 1923 †
30. Species Monodacna subcarinifera Ruzhentsev, 1928 †
31. Species Monodacna tenue (T. Fuchs, 1877) † (accepted > unreplaced junior homonym, junior homonym of Cardium tenue Leach in Gray, 1852)
32. Species Monodacna tenuicostata Gillet, 1969 †
33. Subgenus Monodacna (Catilloides) Andrusov, 1923 † accepted as Monodacna Eichwald, 1838 (unaccepted > junior subjective synonym)
34. Subgenus Monodacna (Didacnomya) Andrusov, 1923 † accepted as Pseudocatillus Andrusov, 1903 † (unaccepted > junior subjective synonym)
35. Subgenus Monodacna (Diversicostata) Vassoevich & Eberzin, 1930 † accepted as Diversicostata Vassoevich & Eberzin, 1930 † (unaccepted > superseded rank)
36. Subgenus Monodacna (Plagiodacnopsis) Andrusov, 1923 † accepted as Plagiodacnopsis Andrusov, 1923 † (unaccepted > superseded rank)
37. Subgenus Monodacna (Pseudocatillus) Andrusov, 1903 † accepted as Pseudocatillus Andrusov, 1903 † (unaccepted > superseded rank)
    1. Species Monodacna (Pseudocatillus) pannonica Lörenthey, 1906 † accepted as Parvidacna pannonica (Lörenthey, 1906) † (unaccepted > superseded combination)
    2. Species Monodacna (Pseudocatillus) pseudocatillus (Abich, 1869) † accepted as Pseudocatillus pseudocatillus (Abich, 1869) † (unaccepted > superseded combination)
    3. Species Monodacna (Pseudocatillus) rappensbergeri (Lörenthey, 1893) † (uncertain > taxon inquirendum)
38. Species Monodacna azerbaidjanica [sic] † accepted as Monodacna azerbajdjanica A. A. Ali-Zade & Aleskerov, 1967 † (unaccepted > misspelling - incorrect subsequent spelling)
39. Species Monodacna azerbaijanica [sic] † accepted as Monodacna azerbajdjanica A. A. Ali-Zade & Aleskerov, 1967 † (unaccepted > misspelling - incorrect subsequent spelling)
40. Species Monodacna babadjanica Andrusov, 1909 † accepted as Pseudocatillus babadjanicus (Andrusov, 1909) † (unaccepted > superseded combination)
41. Species Monodacna bakuana Andrusov, 1923 † accepted as Didacnoides bakuanus (Andrusov, 1923) † (unaccepted > superseded combination)
42. Species Monodacna carinifera Andrusov, 1923 † accepted as Plagiodacnopsis carinifera (Andrusov, 1923) † (unaccepted > superseded combination)
43. Species Monodacna castellinensis (Capellini, 1873) † accepted as Pontalmyra castellinensis (Capellini, 1873) † (unaccepted > superseded combination)
44. Species Monodacna catillus Eichwald, 1841 † accepted as Didacna catillus (Eichwald, 1841) † (unaccepted > superseded combination)
45. Species Monodacna caucasica Andrusov, 1923 † accepted as Didacnoides caucasicus (Andrusov, 1923) † (unaccepted > superseded combination)
46. Species Monodacna commilitans Davitashvili, 1930 † accepted as Diversicostata commilitans (Davitashvili, 1930) † (unaccepted > superseded combination)
47. Species Monodacna crassidens V. P. Kolesnikov, 1950 † accepted as Monodacna sjoegreni Andrusov, 1923 † (unaccepted > junior subjective synonym)
48. Species Monodacna dalii Chelidze, 1947 † accepted as Pseudocatillus dalii (Chelidze, 1947) † (unaccepted > superseded combination)
49. Species Monodacna didacnoides Andrusov, 1923 † accepted as Didacnoides didacnoides (Andrusov, 1923) † (unaccepted > superseded combination)
50. Species Monodacna discernabilis Gabuniya, 1953 † accepted as Diversicostata maxima (Vassoevich & Eberzin, 1930) † (unaccepted > junior subjective synonym)
51. Species Monodacna djalensis Gabuniya, 1953 † accepted as Diversicostata maxima (Vassoevich & Eberzin, 1930) † (unaccepted > junior subjective synonym)
52. Species Monodacna donacoides Vassoevich & Eberzin, 1930 † accepted as Pseudocatillus donacoides (Vassoevich & Eberzin, 1930) † (unaccepted > superseded combination)
53. Species Monodacna golubiatnikovi Andrusov, 1923 † accepted as Plagiodacnopsis carinifera (Andrusov, 1923) † (subjective synonym)
54. Species Monodacna hellespontica "Andrusov, 1896" † accepted as Submonodacna pleistopleura (Davitashvili, 1930) †
55. Species Monodacna intermedia Eichwald, 1841 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > superseded combination)
56. Species Monodacna isseli Andrusov, 1923 † accepted as Plagiodacnopsis isseli (Andrusov, 1923) † (unaccepted > superseded combination)
57. Species Monodacna katscharavai Gabuniya, 1953 † accepted as Diversicostata maxima (Vassoevich & Eberzin, 1930) † (unaccepted > junior subjective synonym)
58. Species Monodacna latecostata Andrusov, 1923 † accepted as Monodacna laevigata Andrusov, 1923 † (subjective synonym)
59. Species Monodacna laticostata Stevanović, 1951 † accepted as Pseudocatillus laticostatus (Stevanović, 1951) † (unaccepted > superseded combination)
60. Species Monodacna lebedinzevi Andrusov, 1929 † accepted as Pseudocatillus lebedinzevi Andrusov, 1929 † (unaccepted > superseded combination)
61. Species Monodacna maciae Chelidze, 1947 † accepted as Macradacna maciae (Chelidze, 1947) † (unaccepted > superseded combination)
62. Species Monodacna major Andrusov, 1923 † accepted as Monodacna sjoegreni Andrusov, 1923 † (subjective synonym)
63. Species Monodacna mandarinifera Gabuniya, 1953 † accepted as Macradacna maciae (Chelidze, 1947) † (unaccepted > junior subjective synonym)
64. Species Monodacna maxima Vassoevich & Eberzin, 1930 † accepted as Diversicostata maxima (Vassoevich & Eberzin, 1930) † (unaccepted > superseded combination)
65. Species Monodacna minor Andrusov, 1923 † accepted as Monodacna sjoegreni Andrusov, 1923 † (subjective synonym)
66. Species Monodacna pharnaci Shvets, 1912 † accepted as Pseudocatillus pharnaci (Shvets, 1912) † (unaccepted > superseded combination)
67. Species Monodacna pleonexia Davitashvili, 1933 † accepted as Pseudocatillus pleonexia (Davitashvili, 1933) † (unaccepted > superseded combination)
68. Species Monodacna polemonis Shvets, 1912 † accepted as Pseudocatillus polemonis (Shvets, 1912) † (unaccepted > superseded combination)
69. Species Monodacna propinqua Eichwald, 1841 † accepted as Apscheronia propinqua (Eichwald, 1841) † (unaccepted > superseded combination)
70. Species Monodacna pseudocardium (Deshayes, 1838) † accepted as Monodacna pontica Eichwald, 1838 (unaccepted > junior subjective synonym)
71. Species Monodacna pseudocatillus (Abich, 1869) † accepted as Pseudocatillus pseudocatillus (Abich, 1869) † (unaccepted > superseded combination)
72. Species Monodacna pseudomaxima Davitashvili, 1930 † accepted as Diversicostata maxima (Vassoevich & Eberzin, 1930) † (unaccepted > junior subjective synonym)
73. Species Monodacna pyrophila Andrusov, 1923 † accepted as Monodacna sjoegreni Andrusov, 1923 † (subjective synonym)
74. Species Monodacna raricostata Gabuniya, 1953 † accepted as Diversicostata maxima (Vassoevich & Eberzin, 1930) † (unaccepted > junior subjective synonym)
75. Species Monodacna schakonensis Vassoevich & Eberzin, 1930 † accepted as Diversicostata schakonensis (Vassoevich & Eberzin, 1930) † (unaccepted > superseded combination)
76. Species Monodacna simmetrica A. A. Ali-Zade & Aleskerov, 1969 † accepted as Monodacna sjoegreni Andrusov, 1923 † (unaccepted > junior subjective synonym)
77. Species Monodacna sokolovi Vassoevich & Eberzin, 1930 † accepted as Pseudocatillus sokolovi (Vassoevich & Eberzin, 1930) † (unaccepted > superseded combination)
78. Species Monodacna subcolorata Vassoevich, 1928 † accepted as Pseudocatillus subcoloratus Vassoevich, 1928 † (unaccepted > superseded combination)
79. Species Monodacna sublaevigata Andrusov, 1923 † accepted as Monodacna laevigata Andrusov, 1923 † (subjective synonym)
80. Species Monodacna submaxima Gabuniya, 1953 † accepted as Diversicostata maxima (Vassoevich & Eberzin, 1930) † (unaccepted > junior subjective synonym)
81. Species Monodacna tinnyeana Lörenthey, 1906 † accepted as Lymnocardium tinnyeanum Lörenthey, 1906 † (unaccepted > superseded combination)
82. Species Monodacna transkaspica Andrusov, 1923 † accepted as Didacnoides transkaspicus (Andrusov, 1923) † (unaccepted > superseded combination)
83. Species Monodacna tschelidzei Gabuniya, 1953 † accepted as Pseudocatillus tschelidzei (Gabuniya, 1953) † (unaccepted > superseded combination)
84. Species Monodacna vienensis [sic] † accepted as Monodacna viennensis A. Papp, 1953 † accepted as Parvidacna viennensis (A. Papp, 1953) † (unaccepted > misspelling - incorrect subsequent spelling)
85. Species Monodacna viennensis A. Papp, 1953 † accepted as Parvidacna viennensis (A. Papp, 1953) † (unaccepted > superseded combination)
86. Species Monodacna voesendorfensis A. Papp, 1953 † accepted as Pseudocatillus voesendorfensis (A. Papp, 1953) † (unaccepted > superseded combination)
87. Species Monodacna vulgaris (Sinzov, 1876) † accepted as Pseudocatillus vulgaris (Sinzov, 1876) † (unaccepted > superseded combination)
88. Species Monodacna zlatarskii Andrusov, 1929 † accepted as Pseudocatillus zlatarskii (Andrusov, 1929) † (unaccepted > superseded combination)
89. Species Monodacna falunica (Shvets, 1912) † (uncertain > taxon inquirendum)
90. Species Monodacna filatovae (Logvinenko & Starobogatov, 1967) (uncertain > nomen dubium)
91. Species Monodacna knipowitschi (Logvinenko & Starobogatov, 1966) (uncertain > nomen dubium)
92. Species Monodacna leo Gabuniya, 1953 † (uncertain > taxon inquirendum)
93. Species Monodacna lessonae Issel, 1865 † (uncertain > taxon inquirendum)
94. Species Monodacna sublebedinzevi Davitashvili, 1933 † (uncertain > taxon inquirendum)

The webpage text is licensed under a Creative Commons Attribution 4.0 License