Olivancillaria contortuplicata (Reeve, 1850)

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).