Powelliphanta spedeni
| Powelliphanta spedeni | |
|---|---|
 | |
| Powelliphanta spedeni lateumbilicata at Te Papa | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia
clade Euthyneura |
| Superfamily: | Rhytidoidea |
| Family: | Rhytididae |
| Genus: | Powelliphanta |
| Species: | P. spedeni |
| Binomial name | |
| Powelliphanta spedeni (Powell, 1932) | |
Powelliphanta spedeni, known as one of the amber snails, is a species of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.
Distribution
This species is endemic to the South Island of New Zealand. There are two subspecies:[1]
- Powelliphanta spedeni spedeni Powell, 1932
- Powelliphanta spedeni lateumbilicata Powell, 1946
Description
The shell of Powelliphanta spedeni reaches a maximum size of 40 mm.[2]
Life cycle
Powelliphanta spedeni produces an egg up to the size of 11.5 mm.[2] Shape of the eggs is oval and seldom constant in dimensions 11.5 × 9 mm, 11 × 9 mm, 9 × 7.75 mm.[2] Its eggs are laid in March.[2]
References
- ↑ Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
- 1 2 3 4 O'Connor A. C. (June) 1945. Notes on the Eggs of New Zealand Paryphantidae, With Description of a New Subgenus. Transactions of the Royal Society of New Zealand, volume 75, 1945-46, pages 54-57.
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