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Nassarius burchardi (Dunker in Philippi, 1849) Description: Shell with rounded whorls with axial folds which form nodules at the suture, with a constriction below; 9-20 axials on the body whorl, the last 3 or 4 present only as the sutural nodule. Base of body whorl with widely spaced spiral riblets which may extend up to the centre of the body whorl. Outer lip reflected outwards, smooth or with up to 9 teeth internally. Columella callus expanded greatly, but only rarely extending above the body whorl; 2 - 5 often weak teeth on the anterior of the columella. Columellar callus brown, or white with the toothed area brown. Exterior fawn or brown, with a dark brown band below the suture and at the base of the body whorl. Size: Up to 12.5 mm in length. Distribution: Endemic to Australia; Townsville, Qld, to Fremantle, WA, including Tas. Habitat: On sand and mud flats, in lagoons and estuaries, from intertidal down to 100 m. Abundant. Comparison: See N. jonasii. Synonym: Parcanassa ellana Iredale 1936 was applied to shells in Sydney Harbour, but they are within the range of variation of the species. Figs. 1,2: Tuross Head, NSW (DLB4964) |
