'Phylactolaemata' definitions:

Definition of 'Phylactolaemata'

From: GCIDE

Phylactolaema \Phy*lac`to*l[ae]"ma\, Phylactolaemata \Phy*lac`to*l[ae]"ma*ta\, n. pl. [NL., fr. Gr. fyla`ssein to guard + laimo`s the gullet.] (Zool.) An order of fresh-water Bryozoa in which the tentacles are arranged on a horseshoe-shaped lophophore, and the mouth is covered by an epistome. Called also {Lophopoda}, and hippocrepians. [1913 Webster]