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Siphonophore :: Siphonophore (n.) One of the Siphonophora.

Siphoniata :: Siphoniata (n. pl.) Same as Siphonata.

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

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

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

Siphonobranchiata :: Siphonobranchiata (n. pl.) A tribe of gastropods having the mantle border, on one or both sides, prolonged in the form of a spout through which water enters the gill cavity. The shell itself is not always siphonostomatous in this group..

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

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..

Siphonophoran :: Siphonophoran (n.) One of the Siphonophora.

Siphonia :: Siphonia (pl. ) of Siphoniu.

Asiphonata :: Asiphonata (n. pl.) Alt. of Asiphonid.

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

Siphonophoran :: Siphonophoran (a.) Belonging to the Siphonophora.

Physaliae :: Physaliae (n. pl.) An order of Siphonophora which includes Physalia.

Siphon :: Siphon (n.) A sproutlike prolongation in front of the mouth of many gephyreans.

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..

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

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

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

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

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