Animal. Body elongated, prolonged behind the nucleus into a veritable tail, edged at its extremity by a vertical fin; head sufficiently distinct; two, long, conical tentacula; two sessile eyes; the organs of respiration and the nucleus entirely enveloped in a mantle with lobed edges.
Shell. Very thin, symmetrical, a little compressed, without spire, but with the summit a little reflexed posteriorly; aperture oval and entire. Inhabits the African, Mediterranean, and Australian seas. Three species.
- Carinaria vitrea.
- C. fragilis.
- C. cymbium.
GLOSSARY
OF TERMS USED IN CONCHOLOGY.
A.
Abbreviated, cut short.
Abdomen, the belly.
Acuminated, sharp pointed.
Aculeated, prickly.
Alated, winged.