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Tubercliopsis septapilia (Laseron, 1951)

Description (based solely on holotype): Shell evidently immature, of 5 teleoconch whorls, relatively broad, spire concave in outline. Protoconch of 6 whorls, the nuclear whorl an erect peak, whorls smooth, with distinct junction with teleoconch. Teleoconch whorls weakly convex with suture indistinct; 3 spiral cords per whorl with interspaces about equal to width of cords. Last whorl with spiral 4 level with top of aperture, weaker than other spirals. Spirals crossed by axial ribs, forming prominent beads at intersections, moderately strong in interspaces between spirals; about 17 ribs on last whorl. Base concave, smooth. Outer lip thin. Anterior canal a deep U-shaped notch. Shell mid-brown.

Size: Holotype 2.8 mm in length.

Distribution: Holotype from Bronte Beach, Sydney, NSW. Additional material available (6 lots): Fairlight Beach, North Harbour; Reef Beach, North Harbour; North Harbour, dredged; Dolls Point, Georges River; Ocean Beach, Kurnell.

Habitat: Beach washup and shallow subtidal.

Figs. 1, 2: Bronte Beach, Sydney, NSW, (C.102739 HOLOTYPE)


Copyright Des Beechey 2016