strombidæ

pl. [Mod. Lat. stromb ( us ); Lat. fem. pl. adj. suff. -idœ.] Zoology & Paleont.: Wing-shells; a family of Siphonostoma (q. v.). Shell with expanded lip, deeply notched near canal; operculum claw-shaped, serrated on outer edge. Animal with large eyes on thick pedicels, from the middle of which the slender tentacles arise; foot narrow, ill-adapted for creeping; lingual teeth single; uncini three on each side. Genera, Strombus, Pteroceras, Rostellar i a, and Seraphs. They commence in the Lias.