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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.

The third joint or the antennæ of the Crustacea.

The third joint of the typical appendages of Crustacea.

A genus of sapotaceous trees of India. Isonandra Gutta is the principal source of gutta-percha.

An order of sessile-eyed Crustacea, usually having seven pairs of legs, which are all similar in structure.

The native name of a South American rutaceous shrub (Pilocarpus pennatifolius). The leaves are used in medicine as an diaphoretic and sialogogue.

A myrtaceous tree of the West Indies and tropical America (Calyptranthes Jambolana), with astringent bark, used for dyeing. It bears an edible fruit.

Like an ament, or bearing aments; amentaceous.

A Brazilian name for the lofty myrtaceous tree (Bertholetia excelsa) which produces the large seeds known as Brazil nuts.

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

A genus of huge, carnivorous, dinosaurian reptiles from the Cretaceous formation of the United States. They had very large hind legs and tail, and are supposed to have been bipedal. Some of the species were about eighteen feet high.

A division of amphipod Crustacea, in which the abdomen is small or rudimentary and the legs are often reduced to five pairs. The whale louse, or Cyamus, and Caprella are examples.

Cuba), and several other trees of the same family (Anonaseæ). Australian lancewood, a myrtaceous tree (Backhousia Australis).

ntains, and formerly supposed to be of the Tertiary age, but now generally regarded as Cretaceous, or of intermediate and transitional character. It contains beds of lignite, often valuable for coal, and is hence also called the lignitic group. See Chart of Geology.

A genus of gigantic trees, chiefly Brazilian, of the order Myrtaceæ, having woody capsules opening by an apical lid. Lecythis Zabucajo yields the delicious sapucaia nuts. L. Ollaria produces the monkey-pots, its capsules. Its bark separates into thin sheets, like paper, used by the natives for cigarette wrappers.…

An order of Crustacea, including Nebalia and allied forms.

A suborder of copepod Crustacea, including a large number of remarkable forms, mostly parasitic on fishes. The young, however, are active and swim freely. See Illustration in Appendix.

One of a family (Lernæidæ) of parasitic Crustacea found attached to fishes and other marine animals. Some species penetrate the skin and flesh with the elongated head, and feed on the viscera. See Illust. in Appendix.