A revision of the species of Bolma Risso, 1826 (Gastropoda: Turbinidae)

Abstract

All Australian and New Zealand fossil taxa and all world living taxa are revised in the genus Bolma Risso (= Oobolma Sacco, = Ormastralium Sacco, = Tylastralium Sacco, = Pseudastralium Schepman, = Incilaster Finlay, = Galeoastraea Habe, = Hirasazaea Habe). The genus is contrasted with related genera [Astrea, Astralium, Trochus, Pachypoma, Pomaulax, Cookia, Lithopoma, Guildfordia, Fractopella and Vitiastraea] using shell and radular characters. All recognized taxa in Bolma are diagnosed and figured. New taxa named are B. anacanthos sp. nov., Oligocene, Victoria [Australia]; B. austroconica sp. nov. Oligocene, Victoria; B. flindersi darraghi ssp. nov., Upper Eocene, Victoria; B. kermadecensis sp. nov., Recent, Kermadec Islands [New Zealand]; B. somaliensis sp. nov., Recent East Africa, and B. tamikoana flava ssp. nov. Recent, Malagasy Republic. Senobolma Okutani, 1964 is ranked as a subgenus of Bolma Risso. Living taxa newly recorded from Australia are B. guttata millegranosa (Kuroda et Habe), B. guttata subsp?, B. henica (Watson) and B. tamikoana tamikoana (Shikama).