Rhytida greenwoodi greenwoodi
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| Rhytida greenwoodi greenwoodi (Gray, 1850) |
Rhytida greenwoodi greenwoodi is a terrestrial gastropod in the family Rhytididae, endemic to the North and South islands of New Zealand. It is found from Auckland to Wellington, including some offshore islands such as Waiheke, in the North Island, and sporadically at the north of the South Island.
The shell is rather depressed, but with rounded whorls, strongly sculptured with radial anastomosing wrinkles, less prominent on the base. There are four or five oblique spiral ridges that develop over the periphery of the body whorl. Colour is fuscous, often tinged olive-green, and dark chestnut within the umbilicus.
Major diameter is up to 27 mm, and height up to 17 mm.
[edit] References
- Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
