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

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

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..

Labrum :: Labrum (n.) An organ in insects and crustaceans covering the upper part of the mouth, and serving as an upper lip. See Illust. of Hymenoptera..

Podophthalmite :: Podophthalmite (n.) The eyestalk of a crustacean.

Protopodite :: Protopodite (n.) The basal portion, or two proximal and more or less consolidated segments, of an appendage of a 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.

Squamellae :: Squame (n.) The scale, or exopodite, of an antenna of a crustacean..

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

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

Xylophagous :: Xylophagous (a.) Eating, boring in, or destroying, wood; -- said especially of certain insect larvae, crustaceans, and mollusks..

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..

Peraeopod :: Peraeopod (n.) One of the thoracic legs of a crustacean. See Illust. of Crustacea.

Crustacean :: Crustacean (n.) An animal belonging to the class Crustacea.

Remiped :: Remiped (a.) Having feet or legs that are used as oars; -- said of certain crustaceans and insects.

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

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.

Sedentary :: Sedentary (a.) Remaining in one place, especially when firmly attached to some object; as, the oyster is a sedentary mollusk; the barnacles are sedentary crustaceans..

Shell :: Shell (n.) The hard calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates. In some mollusks, as the cuttlefishes, it is internal, or concealed by the mantle. Also, the hard covering of some vertebrates, as the armadillo, the tortoise, and the like..

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

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