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

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..

Interepimeral :: Interepimeral (a.) Between the epimeral plates of insects and crustaceans.

Dactyl :: Dactyl (n.) The claw or terminal joint of a leg of an insect or crustacean.

Scaphognathite :: Scaphognathite (n.) A thin leafike appendage (the exopodite) of the second maxilla of decapod crustaceans. It serves as a pumping organ to draw the water through the gill cavity.

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

Propodite :: Propodite (n.) The sixth joint of a typical leg of a crustacean; usually, the penultimate joint..

Squillitic :: Squilla (n.) Any one of numerous stomapod crustaceans of the genus Squilla and allied genera. They make burrows in mud or beneath stones on the seashore. Called also mantis shrimp. See Illust. under Stomapoda.

Epimeron :: Epimeron (n.) In crustaceans: The part of the side of a somite external to the basal joint of each appendage.

Basicerite :: Basicerite (n.) The second joint of the antennae of crustaceans.

Tarsus :: Tarsus (n.) The foot of an insect or a crustacean. It usually consists of form two to five joints.

Facet :: Facet (n.) One of the numerous small eyes which make up the compound eyes of insects and crustaceans.

Palingenesy :: Palingenesy (n.) That form of evolution in which the truly ancestral characters conserved by heredity are reproduced in development; original simple descent; -- distinguished from kenogenesis. Sometimes, in zoology, the abrupt metamorphosis of insects, crustaceans, etc..

Epizoon :: Epizoon (n.) One of the artificial group of invertebrates of various kinds, which live parasitically upon the exterior of other animals; an ectozoon. Among them are the lice, ticks, many acari, the lerneans, or fish lice, and other crustaceans..

Coxa :: Coxa (n.) The first joint of the leg of an insect or crustacean.

Crustaceous :: Crustaceous (a.) Belonging to the Crustacea; crustacean.

Pygidium :: Pygidium (n.) The caudal plate of trilobites, crustacean, and certain insects. See Illust. of Limulus and Trilobite..

Ichthyophthira :: Ichthyophthira (n. pl.) A division of copepod crustaceans, including numerous species parasitic on fishes..

Malacostracology :: Malacostracology (n.) That branch of zoological science which relates to the crustaceans; -- called also carcinology.

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

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