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Scutibranchiate. -- n.

A genus of oceanic nudibranchiate mollusks having the small branched gills situated on the upper side of four fleshy lateral lobes, and on the median caudal crest.

Any tectibranchiate mollusk of the genus Aplysia. See Aplysia.

Any one of several species of nudibranchiate mollusks of the genus Doris and allied genera, having a smooth, thick, convex yellow body.

A dorsibranchiate annelid, belonging to Aphrodite and allied genera, having long, slender, hairlike setæ on the sides.

llusk by which water is conducted into the gill cavity. See Illust. under Mya, and Lamellibranchiata.

lly, any species of Loligo, Ommastrephes, and related genera. See Calamary, Decacerata, Dibranchiata.

or visceral nerves is twisted, and the sexes separate. It is nearly to equivalent to Prosobranchiata.

ull, and the entire margin of the upper jaw is formed by the premaxillary. Called also Symbranchia.

One of the Tectibranchiata. Also used adjectively.

head or anterior segments usually bear gills and cirri. Called also Sedentaria, and Capitibranchiata. See Serpula, and Sabella.

Any marine tectibranchiate gastropod of the genus Umbrella, having an umbrella-shaped shell; -- called also umbrella shell. Umbrella ant (Zoöl.), the sauba ant; -- so called because it carries bits of leaves over its back when foraging. Called also parasol ant. -- Umbrella bird (Zoöl.), a South American bird (Cephalop…

divisions or classes of Vertebrata are Mammalia, Aves, Reptilia, Amphibia, Pisces, Marsipobranchia, and Leptocardia.

yo, which open into the pharyngeal portion of the alimentary canal, and correspond to the branchial clefts in adult fishes.