2 NEW DEEP-WATER PSEUDOLIVIDAE (NEOGASTROPODA) FROM THE SOUTH-WEST PACIFIC

The new genus Fusulculus, conchologically most similar to Benthobia Da ll, 1889 and Zemira H. & A. Adams, 1853, is erected for axially sculpt ured species of Pseudolividae with shouldered whorls and obsolete labr al tooth; the columellar and parietal callus is of very limited extent , and a parietal rib at the adapical end of the inner lip is absent. T wo new species, Fusulculus crenatus (type of genus) and F. albus are d escribed from bathyal (400-800 m) hard bottoms at tropical and subtrop ical latitudes in the southwest Pacific. No post-Paleocene species of Pseudolividae are known from the tropical Indo-Pacific; the habitat of Fusulculus is bathymetrically transitional between those of Benthobia , from abyssal depths, and the various genera from subtidal waters in southern Australia, South Africa and Angola.