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A poisonous serpent of Brazil (Bothrops jararaca), about eighteen inches long, and of a dusky, brownish color, variegated with red and black spots.

An order of Crustacea, including Nebalia and allied forms.

A subclass of Crustacea, including Arthrostraca and Thoracostraca, or all those higher than the Entomostraca.

One of the Malacostraca.

A macaw.

A degenerate order of Crustacea, including the Rhizocephala and Cirripedia.

The evergreen thorn (Cratægus Pyracantha), a shrub native of Europe.

Composed of four carpels.

An extensive division of Crustacea, having a dorsal shield or carapec

y turned upward and backward. The beach flea is an example. See Tetradecapoda and Arthrostraca.

One of the body segments of Arthropods. See Arthrostraca. Packard.

An order of Entomostraca; -- so named from the feet of branchiopods having been supposed to perform the function of gills. It includes the fresh-water genera Branchipus, Apus, and Limnadia, and the genus Artemia found in salt lakes. It is also called Phyllopoda. See Phyllopoda, Cladocera. It is sometimes used in a broa…

A group of Entomostraca, with suctorial mouths, including species parasitic on fishes, as the carp lice (Argulus).

The minute marine animals (chiefly Entomostraca) upon which the right whales feed.

l species and genera (as Ibycter, Milvago, and Polyborus), which act as scavengers. See Caracara. -- Carrion crow, the common European crow (Corvus corone) which feeds on carrion, insects, fruits, and seeds.

A south American carrion buzzard (Milvago chimango). See Caracara.

An order of the Entomostraca.

An order of Entomastraca, including many minute Crustacea, both freshwater and marine.

A genus of minute Entomostraca, found both in fresh and salt water. See Copepoda.

A group of Crustacea in which the eyes are without stalks; the Arthrostraca. [Written also Edriophthalmata.]