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Macrura :: Macrura (n. pl.) A subdivision of decapod Crustacea, having the abdomen largely developed. It includes the lobster, prawn, shrimp, and many similar forms. Cf. Decapoda..

Arthropoda :: Arthropoda (n. pl.) A large division of Articulata, embracing all those that have jointed legs. It includes Insects, Arachnida, Pychnogonida, and Crustacea..

Monocule :: Monocule (n.) A small crustacean with one median eye.

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..

Dactylar :: Dactylar (a.) Of or pertaining to a finger or toe, or to the claw of an insect crustacean..

Polymeniscous :: Polymeniscous (a.) Having numerous facets; -- said of the compound eyes of insects and crustaceans.

Marsupium :: Marsupium (n.) The pouch, formed by a fold of the skin of the abdomen, in which marsupials carry their young; also, a pouch for similar use in other animals, as certain Crustacea..

Scaphocerite :: Scaphocerite (n.) A flattened plate or scale attached to the second joint of the antennae of many Crustacea.

Edriophthalma :: Edriophthalma (n. pl.) A group of Crustacea in which the eyes are without stalks; the Arthrostraca.

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

Phyllobranchia :: Phyllobranchia (n.) A crustacean gill composed of lamellae.

Amphipoda :: Amphipoda (n. pl.) A numerous group of fourteen -- footed Crustacea, inhabiting both fresh and salt water. The body is usually compressed laterally, and the anterior pairs or legs are directed downward and forward, but the posterior legs are usually turned upward and backward. The beach flea is an example. See Tetradecapoda and Arthrostraca..

Urogastric :: Urogastric (a.) Behind the stomach; -- said of two lobes of the carapace of certain crustaceans.

Arthrostraca :: Arthrostraca (n. pl.) One of the larger divisions of Crustacea, so called because the thorax and abdomen are both segmented; Tetradecapoda. It includes the Amphipoda and Isopoda..

Siphonostomata :: Siphonostomata (n. pl.) A tribe of parasitic copepod Crustacea including a large number of species that are parasites of fishes, as the lerneans. They have a mouth adapted to suck blood..

Homarus :: Homarus (n.) A genus of decapod Crustacea, including the common lobsters..

Oviferous :: Oviferous (a.) Egg-bearing; -- applied particularly to certain receptacles, as in Crustacea, that retain the eggs after they have been excluded from the formative organs, until they are hatched..

Marsupiate :: Marsupiate (a.) Related to or resembling the marsupials; furnished with a pouch for the young, as the marsupials, and also some fishes and Crustacea..

Slater :: Slater (n.) Any terrestrial isopod crustacean of the genus Porcellio and allied genera; a sow bug.

Stipes :: Stipes (n.) The second joint of a maxilla of an insect or a crustacean.

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