| Caecum abreviatum Folin, 1870 [Dubious name] |
| Caecum striatum Folin, 1868 |
| Caecum subvolutum Folin, 1874 |
| Caecum someri (Folin, 1867) |
| Caecum rijgersmai Jong & Coomans, 1988 |
| Caecum regulare Carpenter, 1858 |
| Caecum ryssotitum Folin, 1867 |
| Caecum pulchellum Stimpson, 1851 |
| Caecum plicatum Carpenter, 1858 |
| Caecum planum Folin, 1874 |
| Meioceras nitidum (Stimpson, 1851) |
| Caecum multicostatum Folin, 1867 |
| Caecum massambabense Absalao, 1994 |
| Caecum marmoratum Folin, 1869 |
| Fartulum magellanicum di Geronimo, Privitera & Valdovinos, 1995 |
| Caecum limpidum Folin, 1874 |
| Caecum strictum Folin, 1871 |
| Caecum strigosum Folin, 1868 |
| Caecum subornatum Folin, 1874 |
| Caecum achirona (Folin, 1867) |
| Caecum antillarum Carpenter, 1858 |
| Caecum zonulatum Folin, 1869 [Dubious name] |
| Caecum zaagmani Jong & Coomans, 1988 |
| Caecum venosum Folin, 1867 |
| Meioceras tumidissimum Folin, 1869 |
| Caecum troglodyta Moolenbeek, Faber & Iliffe, 1989 |
| Caecum tortile Dall, 1892 |
| Caecum torquetum Folin, 1867 |
| Caecum tornatum Verrill & Bush, 1900 |
| Caecum tinctum Folin, 1869 [Dubious name] |
| Caecum textile Folin, 1867 |
| Caecum tenuicostatum Folin, 1881 |
| Caecum tenue Verrill & Bush, 1900 |
| Caecum taeniatum Folin, 1869 [Dubious name] |
| Caecum leve Folin, 1870 [Dubious name] |
| Caecum jucundum Folin, 1867 |
| Meioceras cubitatum Folin, 1868 |
| Caecum crispum Verrill & Bush, 1900 |
| Caecum costulatum Folin, 1870 [Dubious name] |
| Meioceras cornucopiae Carpenter, 1858 |
| Caecum cooperi S. Smith, 1860 |
| Caecum condylum Moore, 1969 |
| Caecum circumvolutum Folin, 1867 |
| Caecum cinctum Olsson & Harbison, 1953 |
| Caecum clava Folin, 1867 |
| Caecum caverna Moolenbeek, Faber & Iliffe, 1989 |
| Caecum carolinianum Dall, 1892 |
| Caecum breve Folin, 1867 |
| Caecum brasilicum Folin, 1874 |
| Caecum bipartitum Folin, 1870 |
| Caecum bimamillatum Folin, 1867 |
| Caecum cycloferum Folin, 1867 |
| Caecum debile Verrill & Bush, 1900 |
| Caecum delicatulum Verrill & Bush, 1900 |
| Caecum jonatani Espinosa, Ortea & Fernández-Garcés, 2007 |
| Caecum johnsoni Winkley, 1908 |
| Caecum lineicinctum Folin, 1880 |
| Caecum irregulare Folin, 1867 |
| Caecum insularum Moore, 1969 |
| Caecum infimum Folin, 1867 |
| Caecum imbricatum Carpenter, 1858 |
| Caecum heptagonum Carpenter, 1858 [Extralimital] |
| Caecum hemisphericum Folin, 1867 [Dubious name] |
| Caecum gurgulio Carpenter, 1858 |
| Caecum gibbesii Kurtz, 1860 [Not available] |
| Caecum floridanum Stimpson, 1851 |
| Caecum elongatum Folin, 1874 [Dubious name] |
| Caecum eliezeri Absalao, 1997 |
| Caecum donmoorei Mitchell-Tapping, 1979 |
| Caecum bicinctum Folin, 1870 [Dubious name] |
