Anatifa (&unr_;), n.; pl. Anatifæ (&unr_;). [NL., contr. fr. anatifera. See Anatiferous.] (Zoöl.) An animal of the barnacle tribe, of the genus Lepas, having a fleshy stem or peduncle; a goose barnacle. See Cirripedia.
[1913 Webster]

&hand_; The term Anatifæ, in the plural, is often used for the whole group of pedunculated cirripeds.
[1913 Webster]