Powelliphanta gilliesi gilliesi
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 A Powelliphanta of unknown species.
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| Powelliphanta gilliesi gilliesi E. A. Smith, 1880 |
Powelliphanta gilliesi gilliesi is a terrestrial mollusc in the family Rhytididae, endemic to the South Island of New Zealand. It is found only on the northern part of the Wakamarama Range in West Nelson, from near sea level to 2,000 ft.
The shell has a depressed shape due to the relatively low height of the whorls, and there is a distinctly granulated parietal callus (thickened calcareous deposit on the upper part of the inside wall of the aperture).
Coloration of the dorsal surface is dull brownish, crossed by numerous darker brown and reddish-brown spiral lines. The ventral surface is glossy, outwardly bright red-brown, but most of the base is occupied by a dark-brown, almost black, central zone, with a clearly defined outer edge.
Major diameter is up to 48 mm, and height up to 24 mm.
[edit] References
- Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
