‖n. [ NL., dim. of L. fissura a fissure. ] (Zool.) A genus of marine gastropod mollusks, having a conical or limpetlike shell, with an opening at the apex; -- called also
‖n. [ NL., dim. of L. fissura a fissure. ] (Zool.) A genus of marine gastropod mollusks, having a conical or limpetlike shell, with an opening at the apex; -- called also