Zeacolpus knoxi knoxi
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Zeacolpus knoxi knoxi Marwick, 1957 |
Zeacolpus knoxi knoxi, is a subspecies of small sea snail, amarine gastropod mollusc in the family Turritellidae.
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[edit] Distribution
This subspecies is endemic to New Zealand's Chatham Islands.
[edit] Habitat
This snail lives at depths of between 90 and 220 m.
[edit] Shell description
The shell is very similar to that of Zeacolpus delli, but it is glassy and colourless, and the upper cord is weaker, which results in a concave shoulder.
The shell height is up to 12 mm, and the width is up to 4 mm.
[edit] References
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1