Rhytida meesoni perampla
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| Rhytida meesoni perampla | ||||||||||||||||
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| Rhytida meesoni perampla Powell, 1946 |
Rhytida meesoni perampla is a subspecies of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.
[edit] Distribution
This subspecies is endemic to the South Island of New Zealand. It is found from the Takaka Saddle down the west coast to the Mokihinui River.
[edit] Shell description
The shell attains a much larger size than in the typical meesoni subspecies, has a smaller umbilicus, which is only one tenth the major diameter of the base. The sculpture consists of stronger, more dense malleations, but the spiral striations are subobsolete.
The shell diameter is up to 15 mm, and the height is up to 8 mm.
[edit] References
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
