Gemmula graeffei (Weinkauff 1875)

Gemmula graeffei, common name Graeffe's turrid, is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.^[1]

Description

The length of the shell varies between 13 mm and 35 mm.

The brownish, fusiform shell is crenulately carinate or cingulate. The ribs are lighter-colored. The median carina is stronger, with larger crenulations. The acute apex is corneous and consists of 3½ whorls. The first one is smooth, the others longitudinally plicate. The ovate aperture is plicate within. The columella is upright. The siphonal canal is long and narrow, with a narrow slit above. The acute outer lip is curved ^{[2] [3]}

Distribution

This marine species occurs off the Fiji Islands; Queensland, Australia; the Philippines.

References

• Brazier, J. 1876. A list of the Pleurotomidae collected during the Chevert expedition, with the description of the new species. Proceedings of the Linnean Society of New South Wales 1: 151–162
• Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213–359, pls 42–56
• Shuto, T. 1969. Neogene gastropods from Panay Island, the Philippines. Memoires of the Faculty of Science, Kyushu University 19(1): 1-250
• Cernohorsky, W.O. 1978. Tropical Pacific marine shells. Sydney : Pacific Publications 352 pp., 68 pls.
• Wilson, B. 1994. Australian marine shells. Prosobranch gastropods. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.