What does anatifa mean?
The definition of anatifa
A*nat”i*fa, n.; pl. Anatifæ.
Etym: [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.

Note: The term Anatifæ, in the plural, is often used for the whole group of pedunculated cirripeds.