Category:Siphonobranchiata

Si`pho*no*bran`chi*a"ta, n. pl. Etym: [nl. See siphon, and branchia.] (zoöl.)

Defn: a tribe of gastropods having the mantle border, on one or both Sides, prolonged in the form of a spout through which water enters The gill cavity. The shell itself is not always siphonostomatous in This group.