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Family Cuvierinidae
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This is a family of sea butterflies
previously placed as a subfamily in the Cavoliniidae. Cuvierinids have a
completely transparent bottle-shaped external shell up to 10 mm long.
The aperture is simple and rounded. The needle-like protoconch is
situated below the adult shell and closed off from it by a septum. The
protoconch, together with part of the adult shell, is detached during
life.
Only one species of this family is recorded from NSW.
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Copyright Des Beechey June 2018