|
|
TORNIDAE |
|
|
|
Vitrinella starkeyae (Hedley, 1899) Description: Shell minute, wider than high, low spired. Early whorls rounded, suture grooved; last whorl with broad, shallow groove below suture, smoothly rounded on periphery. Whole surface smooth apart from dense, fine, axial growth lines. Aperture sub-circular with thin inner and outer lips. Umbilicus widely open, with spiral flange descending into it (Fig. 4). Shell colourless transparent. Size: Up to 3.7 mm in width. Distribution: Endemic to Australia. Known only from three lots: Sydney Harbour and off Port Stephens, NSW. Habitat: Sydney Harbour specimens are from beach washup. Rare. Comparison: This species is distinguished by the flange descending into the umbilicus. Fig. 1,2,3: Rose Bay, Port Jackson, NSW (C.360547) Fig. 4: Detail of flange in umbilicus (C.457166) SEM image Sue Lindsay, Australian Museum |
|
