Placostylus ambagiosus gardneri
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| Placostylus ambagiosus gardneri | ||||||||||||||||
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| Placostylus ambagiosus gardneri Powell, 1951 |
Placostylus ambagiosus gardneri was a subspecies of very large, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Bulimulidae, the bulimulus snails and their allies.
This subspecies of large land snail is extinct.
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[edit] Distribution
This subspecies was endemic to the North Cape area in Northland in the North Island of New Zealand.
[edit] Habitat
This subspecies is found as subfossils in consolidated sand dunes at Tom Bowling Bay, Waikuku, and Whareana.
[edit] Shell description
This was the heaviest built of all the New Zealand Placostylus species and subspecies. All five of the apertural processes are well developed, especially the parietal tubercle, which is either vestigial or absent in the other subspecies.
The shell height is up to 81 mm, and width up to 34 mm.
[edit] References
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
