Odostomia occultidens explained

Odostomia occultidens, common name the hidden-toothed pyramid-shell, is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.^[1]

Description

The length of the shell measures 1.5 mm. The minute, white shell is translucent, shining, and smooth. The shell contains three whorls plus a prominent heterostrophe pullus. The adult whorls are rounded, regularly increasing. The aperture is ovately-pyriform. The columella is arched, thin, with a minute plication, rather above the centre, which is invisible from a front view.^[2]

Distribution

This species is found in the littoral zone and offshore off New South Wales, the Bass Strait and Tasmania

References

• Iredale, T. & McMichael, D. F., 1962, A reference list of the marine Mollusca of New South Wales. The Australian Museum, Sydney, Memoir, 11:1-185
• Macpherson, J.H. & Gabriel, C.J., 1962. Marine Mollusca of Victoria. Melbourne Univ. Press, Melbourne. 475
• OBIS : Odostomia occultidens

Notes and References

1. Web site: Pyramidellidae - Odostomiinae: Odostomia (unplaced) occultidens May, 1915 ('hidden-toothed pyramid-shell') . Simon Grove . molluscsoftasmania.net.
2. Additions to the Tasmanian Marine Mollusca, with Descriptions of New Species . W. L. . May . 1915 . 75–99 . Papers and Proceedings of the Royal Society of Tasmania . 1915 . 10.5962/bhl.part.12849. free .