hippurites

[Gr. hippouros = horse-tailed, and suff. -ites ( Palæont.).] [HIPPURIS.] Palæont.: The typical genus of the family Hip puri tide (q. v.). The shell is very inequivalve, inversely conical or elongated and cylindrical, the fixed valve striate or smooth, with three parallel furrows on the cardinal side, the pallial line continuous. Thirty species are known, all from the Chalk of continental Europe, Algeria, and Egypt. Typical species, Hippurites bioculatus and H. cornuvaccinum. ( Woodward . )