Category:Chilostoma

Chi*los"to*ma, Chi*lo*stom"a*ta, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: An extensive suborder of marine Bryozoa, mostly with calcareous shells. They have a movable lip and a lid to close the aperture of the cells. [Also written Chillostomata.]