The shallow-water New Caledonia Drilliidae of genus Clavus Montfort, 1810 (Mollusca: Gastropoda: Conoidea).

Species of the genus Clavus of the conoidean family Drilliidae that occur in the littoral and shallow waters of New Caledonia are here revised. This study is based primarily on recent expedition material from the Institut de Recherche pour le Développement (New Caledonia) and Muséum National d'Histoire Naturelle (France). A total of 22 species is recorded, of which eight are described as new. New species: Clavus boucheti, Clavus delphineae, Clavus virginieae, Clavus picoides, Clavus squamiferus, Clavus devexistriatus, Clavus hylikos, Clavus maestratii; New synonyms: Tylotiella Habe, 1958 = Clavus; Clavus leforestieri Hervier, 1896 = Pleurotoma obliquicostata Reeve, 1845; Pleurotoma mariei Crosse, 1869 = Pleurotoma lamberti Montrouzier, 1860; Clavus mighelsi Kay, 1979, new name for Pleurotoma acuminata Mighels, 1845, non J. Sowerby, 1816, was misidentified by Kay 1979; the lectotype of P. acuminata Mighels, 1845, is mangeliine. Clavus mighelsi sensu Kay 1979, is a synonym of Pleurotoma humilis E. A. Smith, 1879. It is suggested that Pleurotoma pulchella Reeve, 1845, sometimes treated as an Indo-Pacific species, may be a senior synonym of Fenimorea halidorema Schwengel, 1940, from the tropical western Atlantic. Nomen dubium: Pleurotoma mediocris Deshayes, 1863.

Revision of the genus Turris (Gastropoda: Conoidea: Turridae) with the description of six new species.

The taxonomy of the genus TurrisBatsch, 1789, type genus of the family Turridae, widespread in shallow-water habitats of tropic Indo-Pacific, is revised. A total of 31 species of Turris, are here recognized as valid. New species described: Turris chaldaea, Turris clausifossata, Turris guidopoppei, Turris intercancellata, Turris kantori, T. kathiewayae. Homonym renamed: Turris bipartita nom. nov. for Pleurotoma variegataKiener, 1839 (non Philippi, 1836). New synonymies: Turris ankaramanyensisBozzetti, 2006 = Turris tanyspiraKilburn, 1975; Turris imperfecti, T. nobilis, T. pulchra and T. tornatumRöding, 1798, and Turris assyriaOlivera, Seronay & Fedosov, 2010 = T. babylonia; Turris dollyiOlivera, 2000 = Pleurotoma crispaLamarck, 1816; Turris totiphyllisOlivera, 2000 = Turris hidalgoiVera-Peláez, Vega-Luz & Lozano-Francisco, 2000; Turris kilburniVera-Peláez, Vega-Luz & Lozano-Francisco, 2000 = Turris pagasaOlivera, 2000; Turris (Annulaturris) muniziVera-Peláez, Vega-Luz & Lozano-Francisco, 2000 = Gemmula lululimiOlivera, 2000. Revised status: Turris intricataPowell, 1964, Pleurotoma variegata Kiener, 1839 (non Philippi, 1836) and Pleurotoma yeddoensis Jousseaume, 1883, are regarded as full species (not subspecies of Turris crispa). Neotype designated: For Pleurotoma garnonsiiReeve, 1843, to distinguish it from Turris garnonsii of recent authors, type locality emended to Zanzibar. New combination: Turris orthopleuraKilburn, 1983, is transferred to genus Makiyamaia, family Clavatulidae.