Abstract
Recent Australian species of the genera Inquisitor and Ptychobela are revised, and many species previously included in Inquisitor are excluded. A total of 13 species are recognized in Inquisitor, including two described as new from Western Australia, and two species are recognized in Ptychobela. Pleurotoma torresiana Smith, 1884 is considered to be a synonym of I. sterrha (Watson, 1881); Brachytoma alma Thiele, 1930 is synonymized with I. lassulus Hedley, 1922; and I. fibratus Hedley, 1922, Drillia hololeuca Odhner, 1917 and Drillia spaldingi Brazier, 1876 with I. spicata Hinds, 1843. Inquisitor sterrha is recorded for the first time from southern Indonesia and southern Papua New Guinea.
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