Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 3. Subfamily Borsoniinae

Abstract

Eleven genera of Borsoniinae occur in southern Africa and Mozambique. Of these, one genus (Tropidoturris, type-species Pleurotoma scitecostata Sowerby, 1903) is new; another (Mitrel/atoma Powell, 1942) is the first non-fossil record, and Maorimorpha Powell, 1939, is recorded outside New Zealand for the first time. Maoritomella Powell, 1942, and Pulsarella Laseron, 19S4, are treated as full genera. Helenella Casey, 1904, Apaturris Iredale, 1917, and Cymakra Gardner, 1937, are synonyms of Mitrolumna Bucquoy, Dautzenberg & Dollfus, 1883, which is regarded as a subgenus of Mitromorpha Carpenter, 1865. 45 species are reported; of these, 24 species and two subspecies are new, viz. Bathytoma (ParabathYlOma) prodicia, B. (Micantapex) arbucklei; Tropidoturris anaglypta, T. fossata notialis, T. planilirata, T. simplicicingula pondo; Tomopleura oscitans; Maoritomella tarrhion, M. granilirata, M. c/upeispina, M. densecostulata, M. megalacme, M. leptopleura; Microdrillia dinos; Mitrel/atoma milra; Mitromorpha (Mitrolumna) kennel/yi, M.(M) chelonion, M.(M.) brevispira, M.(M.) iridescens, M (M.) rotundicostata, M. (M.) tenuilirata, M. (M.) nodilirata, M. (M.) ustulata, M. (M.) maraisi, M (M) amphibolos, M (M.) platacme. New combinations: Cominella? sulcata Sowerby, 1892, is a Maorimorpha; Pleurotoma fultoni Sowerby, 1888, and Oligotoma clevei Jousseaume, 1883, belong to Pulsarella Laseron, 1954; Be/a eva Thiele, 1925, and Drillia pleonastica Barnard, 1958, are Maoritomella; Acrobela acus Barnard, 1958, belongs to genus Teretia Norman, 1888 (subfamily Raphitominae); Mitromorpha veneris Barnard, 1964, belongs to Charitodoron Tomlin, 1932 (family Mitridae). New records: Tomopleura nivea (Philippi, 1851), Microdrillia patricia (Melvill, 1904), M. circumver­ tens (Melvill & Standen, 1901).