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Morum
bruuni (Powell,
1958) Description: Shell moderately light in weight, whorls strongly shouldered, spire low. Axial sculpture of strong ribs, spiked on the shoulder, about 12-16 on the body whorl, with 3-7 finer axials between; major axials sometimes nodulose. Spiral sculpture of low, broad ribs, stronger towards the base. Outer lip with varix, thickened internally, with about 20 denticles. Posterior canal a well defined groove. Columellar callus expanding onto body whorl, aperture denticulate along its whole length with about 15 elongate denticles, not reaching edge. Anterior canal upturned. Background colour off-white, with three or four spiral fawn bands, one at shoulder, one at base and two between, with corresponding dark brown patches on the varix; outer lip and columellar callus white, interior of columella with dark red-brown central zone. Size: Up to 38 mm in length. Distribution: Known from only a few specimens from Kermadec Islands, Tasman and Taupo Sea Mounts (380 km east of Newcastle) and from one specimen (Figs. 1,2) from off Botany Bay, NSW. Habitat: Known from 75-244 metres. Rare. Synonym: Pulchroniscia delecta Garrard, 1961 Remarks: The anatomy of this species is described by Beu (1976). Figs. 1,2: Holotype of Pulchroniscia delecta Garrard, 1961; off Botany Bay, NSW, 75 fathoms (137 m). (C.063343) |
