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Sea Lily :: Sea lily () A crinoid.

Crinoidean :: Crinoidean (n.) One of the Crinoidea.

Brachiata :: Brachiata (n. pl.) A division of the Crinoidea, including those furnished with long jointed arms. See Crinoidea..

Entrochite :: Entrochite (n.) A fossil joint of a crinoid stem.

Marsupite :: Marsupite (n.) A fossil crinoid of the genus Marsupites, resembling a purse in form..

Tessellata :: Tessellata (n. pl.) A division of Crinoidea including numerous fossil species in which the body is covered with tessellated plates.

Crinoidal :: Crinoidal (a.) Of pertaining to crinoids; consisting of, or containing, crinoids..

Articulus :: Articulus (n.) A joint of the cirri of the Crinoidea; a joint or segment of an arthropod appendage.

Stalk :: Stalk (n.) A stem or peduncle, as of certain barnacles and crinoids..

Encrinoidea :: Encrinoidea (n. pl.) That order of the Crinoidea which includes most of the living and many fossil forms, having jointed arms around the margin of the oral disk; -- also called Brachiata and Articulata. See Illusts. under Comatula and Crinoidea..

Rhachis :: Rhachis (n.) The central cord in the stem of a crinoid.

Blastoidea :: Blastoidea (n. pl.) One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.

Crinoid :: Crinoid (a.) Crinoidal.

Myzostomata :: Myzostomata (n. pl.) An order of curious parasitic worms found on crinoids. The body is short and disklike, with four pairs of suckers and five pairs of hook-bearing parapodia on the under side..

Paleocrinoidea :: Paleocrinoidea (n. pl.) A suborder of Crinoidea found chiefly in the Paleozoic rocks.

Comatula :: Comatula (n.) A crinoid of the genus Antedon and related genera. When young they are fixed by a stem. When adult they become detached and cling to seaweeds, etc., by their dorsal cirri; -- called also feather stars..

Cystidea :: Cystidea (n. pl.) An order of Crinoidea, mostly fossils of the Paleozoic rocks. They were usually roundish or egg-shaped, and often unsymmetrical; some were sessile, others had short stems..

Syzygy :: Syzygy (n.) Any one of the segments of an arm of a crinoid composed of two joints so closely united that the line of union is obliterated on the outer, though visible on the inner, side..

Trochite :: Trochite (n.) A wheel-like joint of the stem of a fossil crinoid.

Pinnule :: Pinnule (n.) Any one of a series of small, slender organs, or parts, when arranged in rows so as to have a plumelike appearance; as, a pinnule of a gorgonia; the pinnules of a crinoid..

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