Notogibbula
bicarinata (Adams,
1854)
Description:
Body whorl with strong shoulder and basal angulations; slightly concave
between shoulder and suture, and between shoulder and basal angulation;
whole surface sculptured with microscopic spiral threads. Umbilicus
open, deep. Columella curved, smooth, partly reflected over umbilicus.
Outer lip not thickened, smooth internally. Colour pink or fawn,
sometimes with dark brown axial streaks; umbilicus and aperture white.
Size:
Up to 11 mm high, 11 mm wide.
Distribution:
Endemic to Australia; Wooli, NSW, to south-western WA, including Tas.
Habitat:
Lives on seaweed subtidally; mainly known from beach shells. Uncommon.
Synonym:
Gibbula coxi Angas, 1867
Figs.
1,2: Woolga, NSW (C.349699)
Fig.
3: Kurnell, Botany Bay, NSW (C.349664)
Page change
history: Specimen C.349699 rephotographed; Figure 3 added; 25 Apr 2007
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