Distribution: Temperate South America realm. Warm Temperate Southwestern Atlantic province. Imbituba (28°07’S; 48°41’W), Santa Catarina state, Brazil to La Paloma (34°39’S; 54°09’W), Rocha department, Uruguay, usually intertidal (Teso & Pastorino, 2011: 15).
The species is listed on the red list of endangered species (critical) of Bazil (Junqueira Subirá, 2016).
"Shell ovate, rather thin, gibbous and slightly inflated in the middle, spire short, acuminated, callous, sharp at the apex, columella much arched, plaits peculiarly strongly twisted; blue-grey, encircled round the base with a narrow chestnut zone, columella white, interior of the aperture very dark chestnut.". Recent. Senegal, West Africa.
"Ovato-subfusiformis, plumbea, transverse minutissime striata, infra suturam fulvo unifasciata; spira, conica, apiculata, callosa, anfractibus rotundis; balteo supra et infra albo, medio aurantio; columella, tortuosa, callosa, callo antico contorto, plicis duabus, postica, divisa; apertura intus fusca, pallide unifasciata.". Recent. West Africa.
