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Paracuneus immaculatus (Tenison-Woods, 1876) Description: Shell elongate, aperture about one-third of shell length. Whorls concave above periphery, straight or convex below. Spiral sculpture of weak nodules on the periphery, about 12-14 on the penultimate whorl, often absent on the body whorl and sometimes absent from all whorls; whole surface with weak and often indistinct spiral threads. Axial sculpture restricted to growth lines. Inner lip of aperture with heavy callus pad at upper end. Outer lip thin with deep rounded V shaped sinus with apex above peripheral nodules, and a weak stromboid notch at lower quarter. Colour fawn to dark brown. Size: Up to 19 mm. Distribution: Endemic to Australia; southern Queensland to Bass Strait. Habitat: Taken in 10-120 m. Uncommon. Synonymy: Drillia gabrieli Pritchard & Gatliff, 1899; Paracuneus immaculatus peronianus Laseron, 1954 (NEW SYNONYM); Pleurotoma spadix Watson, 1886 (NEW SYNONYM); Paracuneus spadix tumulus Laseron, 1954 (NEW SYNONYM) Remarks: Laseron described subspecies Paracuneus immaculatus peronianus (Laseron, 1954), based on a brown shell, describing the NSW shells as "a deeper chocolate brown, they are also rather slenderer and not so heavy, and the whorls are rather flatter". Fig. 2 shows the holotype of this subspecies. Fig. 1: Off Port Hacking, NSW, in 100 m (C.372536) Fig. 2: HOLOTYPE of Paracuneus immaculatus peronianus. Quarantine Bay, Sydney Harbour (C.103520) |
