Olivancillaria deshayesiana (Duros de St. Germain, 1857)

Distribution: Temperate South America realm. Warm Temperate Southwestern Atlantic province. Ilha Grande (23°09’S; 44°13’W), Rio de Janeiro state, Brazil to Necochea (38°33’S; 58°44’W), Buenos Aires province, Argentina in 0–60 m depth (Teso & Pastorino, 2011: 18). Middle Pleistocene. Rio Grande do Sul State, Brazil.