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Nectocalyx :: Nectocalyx (n.) One of the zooids of certain Siphonophora, having somewhat the form, and the essential structure, of the bell of a jellyfish, and acting as a swimming organ..

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

Siphon :: Siphon (n.) The sucking proboscis of certain parasitic insects and crustaceans.

Porpita :: Porpita (n.) A genus of bright-colored Siphonophora found floating in the warmer parts of the ocean. The individuals are round and disk-shaped, with a large zooid in the center of the under side, surrounded by smaller nutritive and reproductive zooids, and by slender dactylozooids near the margin. The disk contains a central float, or pneumatocyst..

Velella :: Velella (n.) Any species of oceanic Siphonophora belonging to the genus Velella.

Siphon :: Siphon (n.) The siphuncle of a cephalopod shell.

Siphonostomatous :: Siphonostomatous (a.) Pertaining to the Siphonostomata.

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

Pneumonophora :: Pneumonophora (n. pl.) The division of Siphonophora which includes the Physalia and allied genera; -- called also Pneumatophorae.

Dactylozooid :: Dactylozooid (n.) A kind of zooid of Siphonophora which has an elongated or even vermiform body, with one tentacle, but no mouth. See Siphonophora..

Infundibulum :: Infundibulum (n.) The siphon of Cephalopoda. See Cephalopoda.

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

Siphonoglyphe :: Siphonoglyphe (n.) A gonidium.

Siphonia :: Siphonia (pl. ) of Siphoniu.

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..

Siphoid :: Siphoid (n.) A siphon bottle. See under Siphon, n..

Siphonobranchiate :: Siphonobranchiate (n.) One of the Siphonobranchiata.

Siphonophora :: Siphonophora (n. pl.) An order of pelagic Hydrozoa including species which form complex free-swimming communities composed of numerous zooids of various kinds, some of which act as floats or as swimming organs, others as feeding or nutritive zooids, and others as reproductive zooids. See Illust. under Physallia, and Porpita..

Siphonarid :: Siphonarid (n.) Any one of numerous species of limpet-shaped pulmonate gastropods of the genus Siphonaria. They cling to rocks between high and low water marks and have both lunglike organs and gills.

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

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