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Crust :: Crust (n.) The hard external coat or covering of anything; the hard exterior surface or outer shell; an incrustation; as, a crust of snow..

Decapod :: Decapod (n.) A crustacean with ten feet or legs, as a crab; one of the Decapoda. Also used adjectively..

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

Leptostraca :: Leptostraca (n. pl.) An order of Crustacea, including Nebalia and allied forms..

Crustalogical :: Crustalogical (a.) Pertaining to crustalogy.

Tube :: Tube (n.) A more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm..

Procrustes :: Procrustes (n.) A celebrated legendary highwayman of Attica, who tied his victims upon an iron bed, and, as the case required, either stretched or cut of their legs to adapt them to its length; -- whence the metaphorical phrase, the bed of Procrustes..

Anomuran :: Anomuran (a.) Irregular in the character of the tail or abdomen; as, the anomural crustaceans..

Flagellum :: Flagellum (v. t.) A lashlike appendage of a crustacean, esp. the terminal ortion of the antennae and the epipodite of the maxilipeds. See Maxilliped..

Sclerodermite :: Sclerodermite (n.) The hard integument of Crustacea.

Sassoline :: Sassoline (n.) Native boric acid, found in saline incrustations on the borders of hot springs near Sasso, in the territory of Florence..

Eschara :: Eschara (n.) A genus of Bryozoa which produce delicate corals, often incrusting like lichens, but sometimes branched..

Areola :: Areola (n.) An interstice or small space, as between the cracks of the surface in certain crustaceous lichens; or as between the fibers composing organs or vessels that interlace; or as between the nervures of an insect's wing..

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..

Uropod :: Uropod (n.) Any one of the abdominal appendages of a crustacean, especially one of the posterior ones, which are often larger than the rest, and different in structure, and are used chiefly in locomotion. See Illust. of Crustacea, and Stomapoda..

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..

Spermatophore :: Spermatophore (n.) A capsule or pocket inclosing a number of spermatozoa. They are present in many annelids, brachiopods, mollusks, and crustaceans. In cephalopods the structure of the capsule is very complex..

Crustation :: Crustation (n.) An adherent crust; an incrustation.

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..

Pasty :: Pasty (n.) A pie consisting usually of meat wholly surrounded with a crust made of a sheet of paste, and often baked without a dish; a meat pie..

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