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Striodentalium thetidis (Hedley, 1903)

Description: Shape slightly curved, sometimes strongly so towards apex. Weight light. Aperture diameter up to 2.0 mm. Apex diameter 0.6 mm Sculpture of 69 raised longitudinal ribs which continue to aperture; interstices with about 10 very fine, evenly spaced, longitudinal threads. Transverse sculpture absent. Aperture polygonal. Colour white.

Size: Up to 25 mm in length.

Distribution: Global distribution: Philippine Islands, Australia and New Caledonia (Scarabino, 1995). Within Australia: Australia wide, except Tasmania.

Habitat: Known from 11504 m. Uncommon.

Comparison: This species is characterised by the fine longitudinal threads between the major ribs.

Fig. 1: NE of Cape Moreton, Qld, in 124 m (C.172208).


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