A REVISION OF THE RECENT CALLIOSTOMA SPECIES OF NEW-ZEALAND (MOLLUSCA, GASTROPODA, TROCHOIDEA)

Thirty-three Recent calliostomatids are recorded from New Zealand, ten of which are described as new. Calliostoma (Otukaia) blacki (Dell, 19 56) is renamed due to homonymy, and the following taxa are newly synon ymized: Venustas tigris chathamensis Deli, 1950 with Calliostoma (Maur ea) tigris (Gmelin, 1791); Maurea punctulata ampla Powell, 1939 and V. punctulata multigemmata Powell, 1952 with C. granti (Powell, 1931); V . couperi Vella, 1954 and Thoristella chathamensis profunda Deli, 1956 with C. blacki (Powell, 1950), which is resurrected from synonymy und er C. foveauxanum (Dell, 1950); Zizyphinus hodgei Hutton, 1875, Z. pon derosus Hutton, 1885, and C. carnicolor Preston, 1907 with C. selectum (Dillwyn, 1817); C. undulatum Finlay, 1923 and C. pellucidum spiratum Oliver, 1926 with C. pellucidum (Valenciennes, 1846). Lectotypes are designated for Trochus selectus Dillwyn, 1817, T. pellucidus Valencien nes, 1846, and Calliostoma onustum Odhner, 1924.