Partulidae
| Partulidae | |
|---|---|
 | |
| Partula radiolata | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura |
| Superfamily: | Partuloidea |
| Family: | Partulidae Pilsbry, 1900 |
| Genera | |
|
See text. | |
Partulidae is a family of air-breathing land snails, terrestrial gastropod mollusks in the superfamily Partuloidea. The family is endemic to Pacific islands.[1][2]
Genera
Partulidae is divided into three genera:[3]
- Eua has four species, confined to Tonga and Samoa.
- Partula has about 100 species, distributed from Belau to the Society Islands.
- Samoana has about 23 species, distributed in Polynesia and the Mariana Islands.
This cladogram shows the phylogenic relationships of genera in the family Partulidae:[4]
| Partulidae |
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Anatomy
In this family, the number of haploid chromosomes lies between 26 and 30 (according to the values in this table).[5]
Significance
The Partulidae represent a significant species radiation and were important in the development of modern evolutionary studies through the work of Henry Crampton in the early 20th century and later by Bryan Clarke, James Murray and Michael Johnson.
Status
Most Partulidae species have declined in the past 40 years and a very large proportion are extinct. The main threat to their survival has been the introduction of the predatory snail Euglandina rosea.
References
- ↑ Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed at http://animaldiversity.org.
- ↑ ITIS Standard Report Page: Partulidae
- ↑ Cowie, R.H. (1992). Evolution and Extinction of Partulidae, Endemic Pacific Island Land Snails. Philosophical Transactions: Biological Sciences, Vol. 335, No. 1274 (Feb. 29, 1992), pp. 167-191.
- ↑ Lee T., Burch J. B., Coote T., Pearce-Kelly P., Hickman C., Meyer J.-Y. & Foighil D. O. (18 August 2009). "Moorean tree snail survival revisited: a multi-island genealogical perspective". BMC Evolutionary Biology 9: 204. doi:10.1186/1471-2148-9-204
- ↑ Barker G. M.: Gastropods on Land: Phylogeny, Diversity and Adaptive Morphology. in Barker G. M. (ed.): The biology of terrestrial molluscs. CABI Publishing, Oxon, UK, 2001, ISBN 0-85199-318-4. 1-146, cited pages: 139 and 142.
External links
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Wikimedia Commons has media related to Partulidae. |
Partulidae evolution, diversity and conservation Partula Pages