海百合纲

[ noun ]
sea lilies
<noun.animal>

Crinoidea \Cri*noid"e*a\ (kr[-i]*noid"[-e]*[.a]), n. pl. [NL.,
from Gr. kri`non lily + -oid: cf. F. crino["i]de.] (Zo["o]l.)
A large class of Echinodermata, including numerous extinct
families and genera, but comparatively few living ones. Most
of the fossil species, like some that are recent, were
attached by a jointed stem. See {Blastoidea}, {Cystoidea},
{Comatula}.