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Serrata haswelli (Laseron, 1948) Diagnosis: Shell moderate in size, colourless transparent or opaque white, with four faint, diffuse brown spiral bands; spire low, rounded; lip thickened internally, coarsely denticulate internally; external varix present; lacking a siphonal notch; lacking parietal callus deposits and ridge; columella with four strong plaits, a weak fifth on one specimen, occupying lower third of aperture. Size: Adults up to 8 mm in length Distribution: Australian Museum Collection: three lots only – holotype, 22 miles east of Narrabeen in 80 fathoms (146 m); off Port Jackson in 109 m; 30 miles off Cape Everard in 365 m. Literature: NSW, Victoria, SA. Rare. Comparison: More
elongate than S. mustelina and
only known from deep water. Remarks: This is a rare, deep water species. Fig. 1: HOLOTYPE. 22 miles east of Narrabeen, NSW, in 80 fathoms (146 m) (C.103374). |
