aAnatiferous(Zoöl) Producing ducks; -- applied to Anatifæ, under the absurd notion of their turning into ducks or geese. See Barnacle.
Century Dictionary and Cyclopedia
anatiferousProducing geese; that is, producing the cirripeds formerly called tree-geese or goose-mussels, which adhere to submerged wood or stone, but were formerly supposed to grow on trees, and then to drop off into the water and turn into geese: an epithet of the barnacle, Lepas anatifera, and of the trees upon which it was supposed to grow. See Anatifa, Lepas.