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Trivia globosa (Sowerby, 1832)

Description: Shell globular, ends slightly extended, spire concealed, aperture almost semicircular. Covered with strong ribs, about 27 on the outer lip, interrupted by a deep dorsal groove, which extends almost the whole length of the shell. Fossula deep, crossed by ribs, extending as a broad groove within the aperture for whole length of shell. Colour white.

Size: Length up to 7 mm.

Distribution: Indo-West Pacific; possibly the entire Australian coast. The Australian Museum holds many beach collected specimens from Queensland and NSW, with a southernmost limit of Gerringong. and a few specimens from western and northern Australia. There are also several lots from 75-150 m in the Great Australian Bight.

Synonym: Trivia pilula Kiener, 1843.

Figs. 1,2: Catherine Hill Bay, NSW (C.054164)

Copyright Des Beechey 2000