Agaronia, GRAY, 1839

GENUS AGARONIA GRAY, 1839 View in CoL (1)

Type species: Voluta hiatula Gmelin, 1791 ; M.

Synonyms

Hiatula Swainson, 1831 View in CoL (Invalid: junior homonym of Hiatula Modeer, 1793 View in CoL [ Bivalvia View in CoL ]).

Anazola Gray, 1858 View in CoL . Type species: Oliva acuminata Lamarck View in CoL ; SD, Cossmann (1899.

Utriculina Gray, 1847 . Type species: Voluta utriculus Gmelin, 1791 [= Voluta gibbosa Born,1778 ]; OD.

SUBFAMILY OLIVELLINAE TROSCHEL, 1869 View in CoL

Type genus: Olivella Swainson, 1831

Diagnosis: Plication plate not distinctly subdivided, with defined spiral plicae that can extend to columella. Internal shell walls partially resorbed. Primary callus extending up to anterior end of plication plate. Filament channel well defined, free on most spire whorls. Anterior mantle tentacle well defined. Head with small, broadly spaced, dorso-ventrally compressed flaps; eyes absent. Operculum present or absent. Radula with five teeth per transverse row; central tooth broad, with numerous short cusps and convex anterior edge. Lateral teeth hook-shaped; additional rectangular weak plates exterior to lateral teeth.