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One of the Pteropoda.

A class of Mollusca in which the anterior lobes of the foot are developed in the form of broad, thin, winglike organs, with which they swim at near the surface of the sea.

Of or pertaining to the Pteropoda.

A genus of naked pteropods. One species (Clione papilonacea), abundant in the Arctic Ocean, constitutes a part of the food of the Greenland whale. It is sometimes incorrectly called Clio.

A membranous, finlike, swimming organ, as in pteropod and heteropod mollusks.

One of the orders of Pteropoda. They have no shell.

A pteroid of the genus Cavolina. See Pteropoda, and Illustration in Appendix.

A genus of small spiral pteropods, common in the Arctic and Antarctic seas. It contributes to the food of the right whales.

The middle portion of the foot in the Gastropoda and Pteropoda.

The posterior division of the foot in the Gastropoda and Pteropoda.

the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses…

A pteropod.

flattened spikelets. -- Spike rush. (Bot.) See under Rush. -- Spike shell (Zoöl.), any pteropod of the genus Styliola having a slender conical shell. -- Spike team, three horses, or a horse and a yoke of oxen, harnessed together, a horse leading the oxen or the span. [U.S.]

species of small, conical fossil shells found in Paleozoic rocks. They are supposed to be pteropods.

An order of Pteropoda comprising those species which have a shell. See Pteropoda. -- The`co*so"ma*tous, a.

One of the broad, thin, anterior lobes of the foot of a pteropod, used as an organ in swimming.

bes of the foot so modified as to form a pair of winglike swimming organs; -- said of the pteropod mollusks.

Any pteropod shell.