MARGARITA crocata.

Orange Pearl-Oyster.

Order Acephala. Family Margaritadæ. Nob.

Margaritadæ. Animal byssiferous, attached to marine bodies by a fascicle of tendinous filaments. Shell foliaceous, the centre internally pearly and iridescent: the form irregular; the margins fragile and transparent. Nob.

Genera. Margarita. Malleus. Perna. Pinna. (Vulsella?) Lam.

Sub-genera? Avicula. Crenatula. Inoceramus. Auct.

Generic Character.

Margarita. See Leach. Zool. Miss. 1. p.107. (1814.)