Harpa

Harpa, common name the 'harp snails', is a genus of large predatory sea snails, marine gastropod mollusks in the family Harpidae. Harpa is the type genus of the family Harpidae. The shell has an ovate-oblong shape. It is more or less inflated, generally pretty thin, enamelled, and provided with parallel, longitudinal, inclined and acute ribs. ; The body whorl is much larger than all the others together. The spire is slightly elevated. The aperture is large, oval, dilated, strongly emarginated inferiorly, and without siphonal canal. The outer lip is bordered by the last rib. The columella is smooth, simple, nearly straight and pointed at the base.