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Polypite :: Polypite (n.) One of the feeding zooids, or polyps, of a coral, hydroid, or siphonophore; a hydranth. See Illust. of Campanularian..

Siphonostomata :: Siphonostomata (n. pl.) A tribe of parasitic copepod Crustacea including a large number of species that are parasites of fishes, as the lerneans. They have a mouth adapted to suck blood..

Asiphonida :: Asiphonida (n. pl.) A group of bivalve mollusks destitute of siphons, as the oyster; the asiphonate mollusks..

Siphonium :: Siphonium (n.) A bony tube which, in some birds, connects the tympanium with the air chambers of the articular piece of the mandible..

Siphonia :: Siphonia (n.) A former name for a euphorbiaceous genus (Hevea) of South American trees, the principal source of caoutchouc..

Siphonifer :: Siphonifer (n.) Any cephalopod having a siphonate shell.

Physograde :: Physograde (n.) Any siphonophore which has an air sac for a float, as the Physalia..

Pneumatocyst :: Pneumatocyst (n.) A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia..

Taster :: Taster (n.) One of a peculiar kind of zooids situated on the polyp-stem of certain Siphonophora. They somewhat resemble the feeding zooids, but are destitute of mouths. See Siphonophora..

Siphon :: Siphon (n.) One of the tubes or folds of the mantle border of a bivalve or gastropod mollusk by which water is conducted into the gill cavity. See Illust. under Mya, and Lamellibranchiata..

Crane :: Crane (n.) A siphon, or bent pipe, for drawing liquors out of a cask..

Siphonostome :: Siphonostome (n.) A siphonostomatous shell.

Siphon :: Siphon (n.) The tubular organ through which water is ejected from the gill cavity of a cephaloid. It serves as a locomotive organ, by guiding and confining the jet of water. Called also siphuncle. See Illust. under Loligo, and Dibranchiata..

Involucrum :: Involucrum (n.) A sheath which surrounds the base of the lasso cells in the Siphonophora.

Siphonal :: Siphonal (a.) Of or pertaining to a siphon; resembling a siphon.

Pallet :: Pallet (n.) One of a pair of shelly plates that protect the siphon tubes of certain bivalves, as the Teredo. See Illust. of Teredo..

Gynophore :: Gynophore (n.) One of the branches bearing the female gonophores, in certain Siphonophora..

Siphon :: Siphon (n.) The anterior prolongation of the margin of any gastropod shell for the protection of the soft siphon.

Calamary :: Calamary (n.) A cephalopod, belonging to the genus Loligo and related genera. There are many species. They have a sack of inklike fluid which they discharge from the siphon tube, when pursued or alarmed, in order to confuse their enemies. Their shell is a thin horny plate, within the flesh of the back, shaped very much like a quill pen. In America they are called squids. See Squid..

Prosiphon :: Prosiphon (n.) A minute tube found in the protoconch of ammonites, and not connected with the true siphon..

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