Gray M.E., 1850
Shell small; young specimens (less than 1 mm) with spiral protoconch from which the body whorl projects as a gently curved tube. Protoconch later breaks off and the truncated body whorl is sealed by a calcareous plug.
Source: Hayward et al., 1990.
The following subtaxa of this family occur in the region:
Genus Caecum
Caecum clarkii
Caecum glabrum
Caecum trachea