Anthobranchia :: Anthobranchia (n. pl.) A division of nudibranchiate Mollusca, in which the gills form a wreath or cluster upon the posterior part of the back. See Nudibranchiata, and Doris..
Aspidobranchia :: Aspidobranchia (n. pl.) A group of Gastropoda, with limpetlike shells, including the abalone shells and keyhole limpets..
Branchia :: Branchia (n.) A gill; a respiratory organ for breathing the air contained in water, such as many aquatic and semiaquatic animals have..
Branchiopoda :: Branchiopoda (n. pl.) An order of Entomostraca; -- so named from the feet of branchiopods having been supposed to perform the function of gills. It includes the fresh-water genera Branchipus, Apus, and Limnadia, and the genus Artemia found in salt lakes. It is also called Phyllopoda. See Phyllopoda, Cladocera. It is sometimes used in a broader sense..
Branchiostegal :: Branchiostegal (a.) Pertaining to the membrane covering the gills of fishes.
Branchiostegal :: Branchiostegal (n.) A branchiostegal ray. See Illustration of Branchial arches in Appendix.
Branchiostege :: Branchiostege () The branchiostegal membrane. See Illustration in Appendix.