Powelliphanta superba richardsoni
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| Powelliphanta superba richardsoni | ||||||||||||||||
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 A Powelliphanta of unknown species.
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| Powelliphanta superba richardsoni Powell, 1936 |
Powelliphanta superba richardsoni, known as one of the amber snails, is a subspecies of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.
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[edit] Distribution
This subspecies is endemic to the north west of the South Island of New Zealand in the West Nelson area.
[edit] Shell description
Powelliphanta superba richardsoni is a large land snail, the shape differing from that of the typical Powelliphanta superba species in that the height of each whorl is considerably less. The parietal callus is brown and smooth.
The shell diameter is up to 76 mm, and height up to 36 mm.
[edit] Conservation status
Powelliphanta superba richardsoni is classified by the New Zealand Department of Conservation as being Nationally Endangered.
[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
