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One of the numerous small eyes which make up the compound eyes of insects and crustaceans.

ries in their midnight dances. -- Fairy shrimp (Zoöl.), a European fresh-water phyllopod crustacean (Chirocephalus diaphanus); -- so called from its delicate colors, transparency, and graceful motions. The name is sometimes applied to similar American species. -- Fairy stone (Paleon.), an echinite.

A lashlike appendage of a crustacean, esp. the terminal ortion of the antennæ and the epipodite of the maxilipeds. See Maxilliped.

sight, a form of front sight placed on target rifles. -- Globe slater (Zoöl.), an isopod crustacean of the genus Spheroma. -- Globe thistle (Bot.), a thistlelike plant with the flowers in large globular heads (Cynara Scolymus); also, certain species of the related genus Echinops. -- Globe valve. (a) A ball valve. (b…

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

A small marine isopod crustacean (Limnoria lignorum or L. terebrans), which burrows into and rapidly destroys submerged timber, such as the piles of wharves, both in Europe and America.

A slender outgrowth from the chitinous cuticle of insects, spiders, crustaceans, and other invertebrates. Such hairs are totally unlike those of vertebrates in structure, composition, and mode of growth.

y for another. [Obs.] "We rest your hermits." Shak. Hermit crab (Zoöl.), a marine decapod crustacean of the family Paguridæ. The species are numerous, and belong to many genera. Called also soldier crab. The hermit crabs usually occupy the dead shells of various univalve mollusks. See Illust. of Commensal. -- Hermit t…

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

The lower lip of trilobites, crustaceans, etc.

A division of copepod crustaceans, including numerous species parasitic on fishes.

Any small crustacean. In a wider sense, the word is often loosely applied to various small invertebrates.

Between the epimeral plates of insects and crustaceans.

Between the sternal; -- said of certain membranes or parts of insects and crustaceans.

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

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, belongi…

Any small crustacean parasitic on fishes. See Branchiura, and Ichthvophthira.

That branch of zoölogical science which relates to the crustaceans; -- called also carcinology.

A larval crustacean in a stage following the nauplius, and having about seven pairs of appendages.

A small crustacean with one median eye.