Powelliphanta hochstetteri bicolor

Taxobox
name = "Powelliphanta hochstetteri bicolor"


image_caption = A "Powelliphanta" of unknown species.
image_width = 250
status =
regnum = Animalia
phylum = Mollusca
classis = Gastropoda
ordo = Pulmonata
familia = Rhytididae
genus = "Powelliphanta"
species = "P. hochstetteri"
subspecies = "P. hochstetteri bicolor"
trinomial = "Powelliphanta hochstetteri bicolor"
trinomial_authority = Powell, 1938

"Powelliphanta hochstetteri bicolor", known as one of the amber snails, is a subspecies of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.

Distribution

This subspecies is endemic to the South Island of New Zealand. It is found only in the eastern Marlborough Sounds including the islands.

hell description

The shell coloration is light yellowish-olive, with a few irregular brown spiral bands at the periphery. The base is free of spirals but there is always a small circular zone of dark chocolate coloration in and surrounding the umbilicus.

The major shell diameter is up to 67 mm, and height up to 32 mm.

Conservation status

"Powelliphanta hochstetteri bicolor" is classified by the New Zealand Department of Conservation as being in "Gradual Decline".

References

* Powell A. W. B., "New Zealand Mollusca", William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
* [http://www.doc.govt.nz/templates/MultipageDocumentPage.aspx?id=39593 New Zealand Department of Conservation Threatened Species Classification]