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Tubercliopsis exigua (Laseron, 1951)

Description (based on syntypes): Shell medium in size for family, conical, moderately wide, spire slightly convex in outline. Protoconch of 4 smooth whorls with distinct junction with teleoconch. Teleoconch whorls convex with deeply impressed suture; 3 spiral cords per whorl with top of 4th spiral slight exposed above suture; interspaces about equal to cord width; last whorl with 4th spiral fully exposed. Spirals crossed by weaker axial ribs, forming beads at intersections; about 16 ribs on last whorl. Base concave, smooth. Outer lip thin, expanded in mature shells. Anterior canal a deep U-shaped notch. Shell translucent, fawn to mid-brown.

Size: Largest syntype 3.3 mm in length.

Distribution: Syntypes from North Harbour, Port Jackson, NSW. No further specimens available.

Habitat: Unknown.

Figs: 1, 2: North Harbour, Port Jackson, NSW (C.102743, SYNTYPE 1)


Copyright Des Beechey 2016