| Genus | Species | Authority | Distribution | References |
| Caecum | amydroglyptum | Rehder 1980 | Pacific Islands | Valdovinos, 1999 |
| Caecum | cf. solitarium | Oliver 1915 | Pacific Islands | Valdovinos, 1999 |
| Caecum | chilense | Stuardo 1962 | Continental | Valdovinos, 1999 |
| Caecum | sp. | Pacific Islands | Osorio & Cantuarias, 1989 | |
| Caecum | subaustrale | Stuardo 1970 | Continental | Valdovinos, 1999 |
| Fartulum | magellanicum | di Geronimo et al 1995 | Continental | Valdovinos, 1999 |
| Fartulum | moorei | Marincovich 1973 | Continental | Valdovinos, 1999 |
| Potamolithus | australis | Biese 1944 | Continental | Valdovinos, 1999 |
References
Osorio, C. & Cantuarias, V. (1989) Vertical distribution of Mollusks on the rocky intertidal of Easter Island. Pacific Science, 43:302-315.
Valdovinos, C. (1999) Biodiviersidad de moluscos chilenos: base de datos taxonomica y distribucional. Gayana Zoologica, 63:111-164.