Ditremaria A. d'Orbigny, 1843 † accepted as Trochotoma J. A. Eudes-Deslongchamps, 1843 † (source of synonymy)
Ditremaria (Discotoma) chordulata Haber, 1934 † accepted as Placotoma funiculosa (Cossmann, 1885) † (source of synonymy)
Ditremaria (Discotoma) mastoidea var. sequanica Haber, 1934 † accepted as Trochotoma mastoidea (Étallon, 1861) † (source of synonymy)
Ditremaria (Discotoma) schlosseri Haber, 1934 † accepted as Placotoma discoidea (Buvignier, 1852) † (source of synonymy)
Ditremaria (Discotoma) valfinensis Haber, 1934 † accepted as Trochotoma auris Zittel, 1873 † (source of synonymy)
Ditremaria (Discotoma) zitteli Haber, 1934 † accepted as Trochotoma auris Zittel, 1873 † (source of synonymy)
Ditremaria (Ditremaria) bellampensis Haber, 1934 † accepted as Trochotoma (Trochotoma) meneghinii Gemmellaro, 1879 † represented as Trochotoma meneghinii Gemmellaro, 1879 † (source of synonymy)
Ditremaria (Ditremaria) cotteauana Haber, 1934 † accepted as Trochotoma (Trochotoma) extensa J. Morris & Lycett, 1851 † represented as Trochotoma extensa J. Morris & Lycett, 1851 † (source of synonymy)
Ditremaria (Ditremaria) hamptonensis Haber, 1934 † accepted as Trochotoma (Trochotoma) obtusa J. Morris & Lycett, 1851 † represented as Trochotoma obtusa J. Morris & Lycett, 1851 † (source of synonymy)
Ditremaria (Ditremaria) siciliana Haber, 1934 † accepted as Trochotoma (Trochotoma) pachyspira E. Eudes-Deslongchamps, 1868 † represented as Trochotoma pachyspira E. Eudes-Deslongchamps, 1868 † (source of synonymy)
Ditremaria conica Rollier, 1918 † accepted as Trochotoma acuminata J. A. Eudes-Deslongchamps, 1843 † (source of synonymy)
Ditremaria deffneri Fraas, 1882 † (status source)
Legayella J.-C. Fischer, 1969 † (basis of record)
Legayella intermedia (Münster, 1844) † (basis of record)
Legayella kimmeridgiensis (Maire, 1927) † (basis of record)
Legayella legayi (Cossmann, 1885) † (basis of record)
Pleurotomaria metzertensis Terquem & Piette, 1865 † (status source)
Pleurotomaria recondita Lycett, 1863 † accepted as Trochotoma obtusa J. Morris & Lycett, 1851 † (additional source)
Sinezona terquemi (Deshayes, 1865) † (basis of record)
Trochotoma J. A. Eudes-Deslongchamps, 1843 † (additional source)
Trochotoma (Discotoma) yunnanensis H.-Z. Pan, 1977 † accepted as Placotoma yunnanensis (H.-Z. Pan, 1977) † (basis of record)
Trochotoma (Placotoma) Ferrari, Damborenea, Manceñido & Griffin, 2015 † accepted as Placotoma Ferrari, Damborenea, Manceñido & Griffin, 2015 † (original description)
Trochotoma (Placotoma) amata (A. d'Orbigny, 1850) † accepted as Placotoma amata (A. d'Orbigny, 1850) † (basis of record)
Trochotoma (Placotoma) barremica Cossmann, 1916 † accepted as Placotoma barremica (Cossmann, 1916) † (basis of record)
Trochotoma (Placotoma) cossmanni (Rollier, 1918) † accepted as Placotoma cossmanni (Rollier, 1918) † (basis of record)
Trochotoma (Placotoma) depressa (Gioli, 1889) † accepted as Placotoma depressa (Gioli, 1889) † (basis of record)
Trochotoma (Placotoma) depressiuscula (Lycett, 1850) † accepted as Placotoma depressiuscula (Lycett, 1850) † (basis of record)
Trochotoma (Placotoma) discoidea Buvignier, 1852 † accepted as Placotoma discoidea (Buvignier, 1852) † (basis of record)
Trochotoma (Placotoma) funiculosa (Cossmann, 1885) † accepted as Placotoma funiculosa (Cossmann, 1885) † (basis of record)
Trochotoma (Placotoma) multicincta (Zieten, 1832) † accepted as Placotoma multicincta (Zieten, 1832) † (basis of record)
Trochotoma (Placotoma) multipleura (H.-Z. Pan, 1977) † accepted as Placotoma multipleura (H.-Z. Pan, 1977) † (basis of record)
Trochotoma (Placotoma) neuquensis Ferrari, Damborenea, Manceñido & Griffin, 2015 † accepted as Placotoma neuquensis (Ferrari, Damborenea, Manceñido & Griffin, 2015) † (original description)
Trochotoma (Placotoma) petrariae (Bigot, 1935) † accepted as Placotoma petrariae (Bigot, 1935) † (basis of record)
Trochotoma (Placotoma) planoconvexa (W. Yu, H.-Z. Pan & H.-J. Wang, 1974) † accepted as Placotoma planoconvexa (W. Yu, H.-Z. Pan & H.-J. Wang, 1974) † (basis of record)
Trochotoma (Placotoma) rota (J. A. Eudes-Deslongchamps, 1843) † accepted as Placotoma rota (J. A. Eudes-Deslongchamps, 1843) † (basis of record)
Trochotoma (Placotoma) solarium (F. C. L. Koch, 1848) † accepted as Placotoma solarium (F. C. L. Koch, 1848) † (basis of record)
Trochotoma (Placotoma) tornatilis (J. Phillips, 1829) † accepted as Placotoma tornatilis (J. Phillips, 1829) † (basis of record)
Trochotoma (Placotoma) yunnanensis (H.-Z. Pan, 1977) † accepted as Placotoma yunnanensis (H.-Z. Pan, 1977) † (basis of record)
Trochotoma (Trochotoma) acuminata J. A. Eudes-Deslongchamps, 1843 † represented as Trochotoma acuminata J. A. Eudes-Deslongchamps, 1843 † (basis of record)
Trochotoma (Trochotoma) affinis J. A. Eudes-Deslongchamps, 1843 † represented as Trochotoma affinis J. A. Eudes-Deslongchamps, 1843 † (basis of record)
Trochotoma (Trochotoma) bicarinata (A. d'Orbigny, 1843) † represented as Trochotoma bicarinata (A. d'Orbigny, 1843) † (basis of record)
Trochotoma (Trochotoma) brocastellensis C. Moore, 1867 † represented as Trochotoma brocastellensis C. Moore, 1867 † (basis of record)
Trochotoma (Trochotoma) calix (J. Phillips, 1829) † represented as Trochotoma calix (J. Phillips, 1829) † (basis of record)
Trochotoma (Trochotoma) carinata Lycett, 1850 † accepted as Trochotoma affinis J. A. Eudes-Deslongchamps, 1843 † (basis of record)
Trochotoma (Trochotoma) conuloides J. A. Eudes-Deslongchamps, 1843 † represented as Trochotoma conuloides J. A. Eudes-Deslongchamps, 1843 † (basis of record)
Trochotoma (Trochotoma) desoriana (Cotteau, 1854) † represented as Trochotoma desoriana (Cotteau, 1854) † (basis of record)
Trochotoma (Trochotoma) extensa J. Morris & Lycett, 1851 † represented as Trochotoma extensa J. Morris & Lycett, 1851 † (basis of record)
Trochotoma (Trochotoma) funata Lycett, 1850 † represented as Trochotoma funata Lycett, 1850 † (basis of record)
Trochotoma (Trochotoma) gigantea Zittel, 1873 † represented as Trochotoma gigantea Zittel, 1873 † (basis of record)
Trochotoma (Trochotoma) gradata (Gemmellaro, 1879) † represented as Trochotoma gradata (Gemmellaro, 1879) † (basis of record)
Trochotoma (Trochotoma) gradus J. A. Eudes-Deslongchamps, 1843 † represented as Trochotoma gradus J. A. Eudes-Deslongchamps, 1843 † (basis of record)
Trochotoma (Trochotoma) haueri M. Hörnes, 1853 † represented as Trochotoma haueri M. Hörnes, 1853 † (basis of record)
Trochotoma (Trochotoma) hudlestoni (Rollier, 1918) † represented as Trochotoma hudlestoni (Rollier, 1918) † (basis of record)
Trochotoma (Trochotoma) imbricata Cossmann, 1885 † represented as Trochotoma imbricata Cossmann, 1885 † (basis of record)
Trochotoma (Trochotoma) infundibulum (Étallon, 1862) † represented as Trochotoma infundibulum (Étallon, 1862) † (basis of record)
Trochotoma (Trochotoma) magnifica Cossmann, 1885 † represented as Trochotoma magnifica Cossmann, 1885 † (basis of record)
Trochotoma (Trochotoma) meneghinii Gemmellaro, 1879 † represented as Trochotoma meneghinii Gemmellaro, 1879 † (basis of record)
Trochotoma (Trochotoma) obtusa J. Morris & Lycett, 1851 † represented as Trochotoma obtusa J. Morris & Lycett, 1851 † (basis of record)
Trochotoma (Trochotoma) orientalis (Kiparisova, 1952) † represented as Trochotoma orientalis (Kiparisova, 1952) † (basis of record)
Trochotoma (Trochotoma) pachyspira E. Eudes-Deslongchamps, 1868 † represented as Trochotoma pachyspira E. Eudes-Deslongchamps, 1868 † (basis of record)
Trochotoma (Trochotoma) protonotialis Ferrari, Damborenea, Manceñido & Griffin, 2015 † represented as Trochotoma protonotialis Ferrari, Damborenea, Manceñido & Griffin, 2015 † (original description)
Trochotoma (Trochotoma) putealis Cossmann, 1885 † represented as Trochotoma putealis Cossmann, 1885 † (basis of record)
Trochotoma (Trochotoma) quenstedti (Rollier, 1918) † represented as Trochotoma quenstedti (Rollier, 1918) † (basis of record)
Trochotoma (Trochotoma) ranvilliana (Rollier, 1918) † represented as Trochotoma ranvilliana (Rollier, 1918) † (basis of record)
Trochotoma (Trochotoma) rathieriana (A. d'Orbigny, 1850) † represented as Trochotoma rathieriana (A. d'Orbigny, 1850) † (basis of record)
Trochotoma (Trochotoma) scalaris (A. d'Orbigny, 1850) † represented as Trochotoma scalaris (A. d'Orbigny, 1850) † (basis of record)
Trochotoma (Trochotoma) schlumbergeri E. Eudes-Deslongchamps, 1868 † accepted as Trochotoma affinis J. A. Eudes-Deslongchamps, 1843 † (basis of record)
Trochotoma (Trochotoma) secans (Dubar, 1948) † represented as Trochotoma secans (Dubar, 1948) † (basis of record)
Trochotoma (Trochotoma) somertonensis (Rollier, 1918) † represented as Trochotoma somertonensis (Rollier, 1918) † (basis of record)
Trochotoma (Trochotoma) tabulata J. Morris & Lycett, 1851 † represented as Trochotoma tabulata J. Morris & Lycett, 1851 † (basis of record)
Trochotoma (Trochotoma) vetusta Terquem, 1855 † represented as Trochotoma vetusta Terquem, 1855 † (basis of record)
Trochotoma amata (A. d'Orbigny, 1850) † accepted as Placotoma amata (A. d'Orbigny, 1850) † (basis of record)
Trochotoma angulata (Münster, 1844) † (basis of record)
Trochotoma auris Zittel, 1873 † (additional source)
Trochotoma bicarinata (A. d'Orbigny, 1843) † (basis of record)
Trochotoma calix (J. Phillips, 1829) † (basis of record)
Trochotoma canaliculata [sic] † accepted as Trochotoma carinata Lycett, 1850 † accepted as Trochotoma affinis J. A. Eudes-Deslongchamps, 1843 † (status source)
Trochotoma carinata Lycett, 1850 † accepted as Trochotoma affinis J. A. Eudes-Deslongchamps, 1843 † (additional source)
Trochotoma carpatica Kochanová, 1973 † (basis of record)
Trochotoma chanoisi Henry, 1875 † (status source)
Trochotoma clypeus Terquem, 1855 † (additional source)
Trochotoma conuloides J. A. Eudes-Deslongchamps, 1843 † (additional source)
Trochotoma desoriana (Cotteau, 1854) † (basis of record)
Trochotoma discoidea (F. Roemer, 1836) † (basis of record)
Trochotoma discoidea Buvignier, 1852 † accepted as Placotoma discoidea (Buvignier, 1852) † (additional source)
Trochotoma distefanoi Fucini, 1913 † (additional source)
Trochotoma elegans Gemmellaro, 1889 † (status source)
Trochotoma gansuensis Tong & Erwin, 2001 † (basis of record)
Trochotoma gemmellaroi (Haber, 1934) † (basis of record)
Trochotoma gigantea Zittel, 1873 † (additional source)
Trochotoma gradata (Gemmellaro, 1879) † (basis of record)
Trochotoma gradus J. A. Eudes-Deslongchamps, 1843 † (additional source)
Trochotoma hermitei Gemmellaro, 1879 † (additional source)
Trochotoma hudlestoni (Rollier, 1918) † (basis of record)
Trochotoma imbricata Cossmann, 1885 † (additional source)
Trochotoma infundibulum (Étallon, 1862) † (basis of record)
Trochotoma ingens (Rollier, 1918) † (basis of record)
Trochotoma lamberti de Loriol, 1893 † (basis of record)
Trochotoma lycetti C. Moore, 1867 † (additional source)
Trochotoma lycetti Hermite, 1877 † accepted as Trochotoma (Trochotoma) obtusa J. Morris & Lycett, 1851 † represented as Trochotoma obtusa J. Morris & Lycett, 1851 † (source of synonymy)

France for Ditremaria conica Rollier, 1918 † 
France for Ditremaria cossmanni Rollier, 1918 † 
France for Trochotoma lamberti de Loriol, 1893 † 
France for Valfinia thurmanni (de Loriol, 1890) † 
Germany for Ditremaria suevica Quenstedt, 1884 † 
Great Britain for Ditremaria hudlestoni Rollier, 1918 † 
Great Britain for Ditremaria somertonensis Rollier, 1918 † 
Great Britain for Trochotoma brocastellensis C. Moore, 1867 † 
Great Britain for Trochotoma extensa J. Morris & Lycett, 1851 † 
Guizhou for Trochotoma orbita H.-Z. Pan, 1982 † 
Morocco for Ditremaria secans Dubar, 1948 † 
Neuquén for Trochotoma (Placotoma) neuquensis Ferrari, Damborenea, Manceñido & Griffin, 2015 † 
Neuquén for Trochotoma (Trochotoma) protonotialis Ferrari, Damborenea, Manceñido & Griffin, 2015 † 
Sicilia for Ditremaria gradata Gemmellaro, 1879 † 

 Classification

 for Trochotoma nucleus (Terquem, 1855) †

Ferrari et al. (2015) classified the taxon as "Trochotoma?" in Table 1, but as "Trochotoma? (Placotoma?)" in the ... [details]

 Status

 for Trochus tornatus J. Phillips, 1829 †

Given by Phillips (1829, p. 130), whereas in other instances he used the spellings "tornatilis". Ferrari et al. ... [details]