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Cavolinidae
The family Cavolinidae includes species with highly modified shells and broad, wing like epipodia. The fragile shells are only occasionally found intact in beach drift and sand samples but fragments may be common. At least 16 species in 7 genera (Cavolinia, Clio, Creseis, Cuvierina, Diacavolinia, Diacria and Styliola) have been found in Hawaiian waters.

In addition to the species listed below, three others have been recorded from the North Pacific near Hawaii based on the range maps in Pelagic Molluscs on the Marine Species Identification Portal: Diacria maculata Bleeker and Van der Spoel, 1988; Diacria major (Boas, 1886) and Hyalocylis striata (Rang, 1828b).
no photo
available
Cavolinia gibbosa

Cavolinia globulosa

Cavolinia inflexa

Cavolinia tridentata(PNH)





Cavolinia uncinata(PNH)

Clio cuspidata

Clio pyramidata

Clio recurva(PNH)





Creseis acicula
no photo
available
Creseis virgula

Cuvierina columella

Diacavolinia longirostris





Diacavolinia pacifica

Diacria costata

Diacria danae

Diacria trispinosa





Styliola subula



 
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