Articulata

(ar-tik-u-lah'tah.) Same der iv. (Zool.) A branch of the animal kingdom comprising all animals which po e bilateral symmetry, and which are divided transversely into rings or points more or le lovable Fig. 47.- FIN-FOOTED CRAB. upon each other, (Portunus pu ber.) and whose hard parts are external. A. are divided into three cla es, Insects, Crustaceans, and Worms. [s. 50]