Definitions for: Turritella

Webster (1913) Definition: Tur`ri*tel"la, n. [NL., dim fr. L. turris tower.]
(Zo["o]l.)
Any spiral marine gastropod belonging to Turritella and
allied genera. These mollusks have an elongated, turreted
shell, composed of many whorls. They have a rounded aperture,
and a horny multispiral operculum.