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and also feelers. The term in also applied to similar organs on the heads of other arthropods and of annelids.

istrophe, in returning from west to east; then they stood before the altar, and sang the epode, which was the last part of the song. Abp. Potter.

der of holothurians in which the internal respiratory organs are wanting; -- called also Apoda or Apodes.

A genus of fresh-water phyllopod crustaceans. See Phyllopod.

One of the classes of Arthropoda. See Illustration in Appendix.

A genus of gigantic cephalopods, allied to the squids, found esp. in the North Atlantic and about New Zealand.

A cephalopod of the genus Argonauta.

A genus of Cephalopoda. The shell is called paper nautilus or paper sailor.

A genus of copepod Crustacea, parasitic of fishes; a fish louse. See Branchiura.

A genus of small isopod Crustacea that can roll themselves into a ball.

An herbaceous grasslike plant (Triglochin palustre, and other species) with pods opening so as to suggest barbed arrowheads.

A genus of phyllopod Crustacea found in salt lakes and brines; the brine shrimp. See Brine shrimp.

The external covering of an Arthropod.

One of the body segments of Arthropods. See Arthrostraca. Packard.

One of the orders of Branchiopoda. See Branchiopoda.

sions of Crustacea, so called because the thorax and abdomen are both segmented; Tetradecapoda. It includes the Amphipoda and Isopoda.

One of the subdivisions of the Brachiopoda, including those that have the shells united by a hinge.

The connection of the parts of a plant by joints, as in pods.

A joint of the cirri of the Crinoidea; a joint or segment of an arthropod appendage.

A group of Gastropoda, with limpetlike shells, including the abalone shells and keyhole limpets.