Olivancillaria

O, Va L E R I A T E S & Pastorino, Guido, 2011, A revision of the genus Olivancillaria (Mollusca: Olividae) from the southwestern Atlantic, Zootaxa 2889, pp. 1-34 : 7

Genus Olivancillaria d´Orbigny, 1840

Type species. Oliva brasiliensis Chemnitz, 1788 nomen nudum rejected by Direction 1, ( ICZN, 1964) (= Olivancillaria urceus [ Röding, 1798]) SD by Marcus & Marcus 1959 = Scaphula Swainson, 1840 (non Benson, 1834) (type species: Oliva patula Sowerby, 1825 ) = Scaphura Gray, 1865 (error pro Swainson, 1840) = Lintricula Adams & Adams, 1853 (type species: Bulla vesica Gmelin, 1791 = Claneophila Gray, 1858 (type species not designated).

Remarks. There is no original designation of O. urceus ( Röding, 1798) as the type species of the genus Olivancillaria . However Marcus & Marcus (1959) named O. urceus (as O. brasiliensis ) as type species and according to the ICZN art. 69 this satisfies the criteria for a subsequent designation.

Gray (1858) disregarded Olivancillaria and described several new generic names including Claneophila with three species. This genus is a clear synonym of d’Orbigny’s Olivancillaria .

Diagnosis. Shell oval-oblong of medium size (up to 63.5 mm), aperture narrow, elongate. Protoconch of about 2 whorls, usually covered by columellar callus. Spire short of about three to five flat whorls; suture channeled, deep, and partially filled with material from the columellar callus; one to twelve columellar folds, one basal fold followed by a deep groove always present; fasciolar band well defined, rounded by a groove; inner columellar walls partially dissolved on the first whorls. Posterior mantle tentacle always present. Foot voluminous not completely retracted into shell. Penis elongated and laterally flattened, sperm channel straight and completely open. Operculum, eyes and tentacles always absent.