Olivancillaria
Olivancillaria is a genus of sea snails, marine gastropod mollusks in the subfamily Olivancillariinae of the family Olividae.
Description
Animal: The head and tentacles are concealed. The mantle shows a large, thick, fleshy appendage behind. The foot is very voluminous, runcate posteriorly. The shield has very large and rounded side-lobes.The operculum is distinct, half-ovate with an subapical nucleus.
Shell: The shell is smooth and oblong. The spire is short with the suture not canaliculated to the apex. The aperture is moderate. The columella shows two or three oblique plaits anteriorly, and has a large callosity posteriorly.
Species
Species within the genus Olivancillaria include:Olivancillaria auricularia Olivancillaria carcellesi Klappenbach, 1965- † Olivancillaria claneophila Olivancillaria contortuplicata Olivancillaria deshayesiana Olivancillaria orbignyi Olivancillaria teaguei Klappenbach, 1964Olivancillaria urceus Olivancillaria vesica