Perennibranchiate :: Perennibranchiate (a.) Having branchae, or gills, through life; -- said especially of certain Amphibia, like the menobranchus. Opposed to caducibranchiate..
Peribranchial :: Peribranchial (a.) Surrounding the branchiae; as, a peribranchial cavity..
Peribranchial :: Peribranchial (a.) Around the bronchi or bronchial tubes; as, the peribronchial lymphatics..
Pharyngobranchial :: Pharyngobranchial (a.) Of or pertaining to the pharynx and the branchiae; -- applied especially to the dorsal elements in the branchial arches of fishes. See Pharyngeal.
Pharyngobranchial :: Pharyngobranchial (n.) A pharyngobranchial, or upper pharyngeal, bone or cartilage..
Prosobranchiata :: Prosobranchiata (n. pl.) The highest division, or subclass, of gastropod mollusks, including those that have the gills situated anteriorly, or forward of the heart, and the sexes separate..
Pterobranchia :: Pterobranchia (n. pl.) An order of marine Bryozoa, having a bilobed lophophore and an axial cord. The genus Rhabdopleura is the type. Called also Podostomata. See Rhabdopleura..
Pygobranchia :: Pygobranchia (n. pl.) A division of opisthobranchiate mollusks having the branchiae in a wreath or group around the anal opening, as in the genus Doris..
Scutibranchiata :: Scutibranchiata (n. pl.) An order of gastropod Mollusca having a heart with two auricles and one ventricle. The shell may be either spiral or shieldlike.