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Palmarium :: Palmarium (n.) One of the bifurcations of the brachial plates of a crinoid.

Scapula :: Scapula (n.) One of the plates from which the arms of a crinoid arise.

Comatulid :: Comatulid (n.) Any crinoid of the genus Antedon or allied genera.

Pelvis :: Pelvis (n.) The calyx of a crinoid.

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..

Sea Lily :: Sea lily () A crinoid.

Articulata :: Articulata (v.) A subdivision of the Crinoidea.

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..

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

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

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..

Crinoid :: Crinoid (a.) Crinoidal.

Encrinus :: Encrinus (n.) A genus of fossil encrinoidea, from the Mesozoic rocks..

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.

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..

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..

Pentacrinus :: Pentacrinus (n.) A genus of large, stalked crinoids, of which several species occur in deep water among the West Indies and elsewhere..

Crinoidea :: Crinoidea (n. pl.) 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..

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

Radiale :: Radiale (n.) Radial plates in the calyx of a crinoid.

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