Powelliphanta traversi otakia
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 A Powelliphanta of unknown species.
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| Powelliphanta traversi otakia Powell, 1930 |
Powelliphanta traversi otakia is a rare large terrestrial mollusc in the family Rhytididae, endemic to the North Island of New Zealand. It is found only near the Otaki River.
The shell coloration is distinctive, the top being closely spirally lined in dark reddish-brown upon an olive-brown to old gold ground, many of the lines wavy to intermittent, giving a speckled appearance. The base is uniformly dark sepia, broken up only near the periphery into several broad bands. The parietal callus (thickened calcareous deposit on the upper part of the inside wall of the aperture) is pale blue-grey.
Major diameter is up to 50 mm, and height up to 26 mm.
Powelliphanta traversi otakia is classified by the New Zealand Department of Conservation as being Nationally Critical.
[edit] References
- Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
- New Zealand Department of Conservation Threatened Species Classification
