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Thorax :: Thorax (n.) The second, or middle, region of the body of a crustacean, arachnid, or other articulate animal. In the case of decapod Crustacea, some writers include under the term thorax only the three segments bearing the maxillipeds; others include also the five segments bearing the legs. See Illust. in Appendix..

Remiped :: Remiped (n.) An animal having limbs like oars, especially one of certain crustaceans..

Sea Louse :: Sea louse () Any one of numerous species of isopod crustaceans of Cymothoa, Livoneca, and allied genera, mostly parasites on fishes..

Pedireme :: Pedireme (n.) A crustacean, some of whose feet serve as oars..

Podobranch :: Podobranch (n.) One of the branchiae attached to the bases of the legs in Crustacea.

Gnathopodite :: Gnathopodite (n.) Any leglike appendage of a crustacean, when modified wholly, or in part, to serve as a jaw, esp. one of the maxillipeds..

Paraphagma :: Paraphagma (n.) One of the outer divisions of an endosternite of Crustacea.

Epistome :: Epistome (n.) The region between the antennae and the mouth, in Crustacea..

Paragnathus :: Paragnathus (n.) One of the two lobes which form the lower lip, or metastome, of Crustacea..

Intersternal :: Intersternal (a.) Between the sternal; -- said of certain membranes or parts of insects and crustaceans.

Hippe :: Hippe (n.) A genus of marine decapod crustaceans, which burrow rapidly in the sand by pushing themselves backward; -- called also bait bug. See Illust. under Anomura..

Sea Slater :: Sea slater () Any isopod crustacean of the genus Ligia.

Parasita :: Parasita (n. pl.) A division of copepod Crustacea, having a sucking mouth, as the lerneans. They are mostly parasites on fishes. Called also Siphonostomata..

Post-abdomen :: Post-abdomen (n.) That part of a crustacean behind the cephalothorax; -- more commonly called abdomen.

Lobster :: Lobster (n.) Any large macrurous crustacean used as food, esp. those of the genus Homarus; as the American lobster (H. Americanus), and the European lobster (H. vulgaris). The Norwegian lobster (Nephrops Norvegicus) is similar in form. All these have a pair of large unequal claws. The spiny lobsters of more southern waters, belonging to Palinurus, Panulirus, and allied genera, have no large claws. The fresh-water crayfishes are sometimes called lobsters..

Swimming :: Swimmeret (n.) One of a series of flat, fringed, and usually bilobed, appendages, of which several pairs occur on the abdominal somites of many crustaceans. They are used as fins in swimming..

Zoea :: Zoea (n.) A peculiar larval stage of certain decapod Crustacea, especially of crabs and certain Anomura..

Sloughing :: Sloughing (n.) The act of casting off the skin or shell, as do insects and crustaceans; ecdysis..

Malacostraca :: Malacostraca (n. pl.) A subclass of Crustacea, including Arthrostraca and Thoracostraca, or all those higher than the Entomostraca..

Maxilliped :: Maxilliped (n.) One of the mouth appendages of Crustacea, situated next behind the maxillae. Crabs have three pairs, but many of the lower Crustacea have but one pair of them. Called also jawfoot, and foot jaw..

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