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PYRAMIDELLIDAE |
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Syrnola jacksonensis Laseron, 1951 Description: Shell large, moderately wide, spire convex in outline, last whorl 1/3 of total shell length. Protoconch unknown. Teleoconch whorls straight-sided or convex, suture moderately indented, whorls smooth, without sculpture. Aperture moderately ovoid; columella with one strong plait. Shell white; with a brown band above suture. Size: Holotype 9 mm in length. Distribution: Only known from the holotype and one other specimen, both from Sydney Harbour. Habitat: Holotype dredged in 15 fathoms (27 m); other specimen from unknown depth. Remarks: The protoconch is broken in both of the available specimens, but Laseron had apparently seen it; his description suggests it was the normal pyramidellidid type B. Fig. 1: Between Sydney Heads, NSW (C.105303 HOLOTYPE). |
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