Colpoda (kolpo da)

[NL., senting a low grade of organization of the ata, common in infusions of hay. They have somewhat the shape of a bean, move actively by means of numerous cilia, the longest of which are at the anterior end of the body, and have a contractile vacuole at the other end, and a large endoplast in the middle. They become quiescent, retract their cilia, are incased in structurele cysts, and in that state multiply by the proce of fi ion into two, four, or more individuals. The genus is referred by Kent to Enchelyidæ. C. cucullus is found in fresh-water infusions. 2. [Used as a plural.] A synonym of Arctisca. Colpodea (kol-pō'dē-a), n. pl. [NL.: see Col pod a.] In Ehrenberg's system (1836), a family of ill or i cate enter ode lous infusorians, with ventral apertures and simple cilia only.