Tomichia is a genus of very small freshwater snails which have a gill and an operculum, gastropod molluscs or micromolluscs in the family Tomichiidae.[3]
| Tomichia | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Tomichiidae |
| Genus: | Tomichia Benson, 1851[1] |
| Diversity[2] | |
| 11 species | |
Distribution
editThe distribution of the genus Tomichia includes South Africa[2] and Eastern Zaire.[4] Tomichia is the only genus of Pomatiopsidae in Africa.[4]
Ecology
editThis genus occurs is both freshwater and brackish water.[3] There exist halophilic species of Tomichia which live in saline lakes[2] such as Tomichia ventricosa.[4]
Species
editBrown (1994)[4] recognized 10 species (7 in South Africa and 3 in Central Africa) and one undescribed species. Kameda & Kato (2011)[2] recognized 11 species of Tomichia.
Species within the genus Tomichia include:
- Tomichia cawstoni Connolly, 1939[4]
- Tomichia differens Connolly, 1939[4]
- Tomichia guillemei Leloup, 1953[4]
- Tomichia hendrickxi (Verdcourt, 1950)[4]
- Tomichia kivuensis Mandahl-Barth, 1974[4]
- Tomichia natalensis Connolly, 1939[4]
- Tomichia rogersi (Connolly, 1929)[4]
- Tomichia tristis (Morelet, 1889)[4][5] - critically endangered[6]
- Tomichia ventricosa (Reeve, 1842) - type species[4]
- Tomichia zwellendamensis (Küster, 1852)[4]
- (?)Tomichia n.sp. - reported by Cohen (1986) from Lake Turkana[4]
References
edit- ^ Benson (1851). Annals and Magazine of Natural History (2)7: 377.
- ^ a b c d Kameda Y. & Kato M. (2011). "Terrestrial invasion of pomatiopsid gastropods in the heavy-snow region of the Japanese Archipelago". BMC Evolutionary Biology 11: 118. doi:10.1186/1471-2148-11-118.
- ^ a b Rosenberg, G. (2010). Tomichia Benson, 1851. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=405098 on 2011-04-04
- ^ a b c d e f g h i j k l m n o Brown D. S. (1994). Freshwater Snails of Africa and their Medical Importance. Taylor & Francis. ISBN 0-7484-0026-5.
- ^ WoRMS (2010). Tomichia tristis. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=405099 on 2011-04-04
- ^ Kristensen T. K., Stensgaard A-S. & Appleton C. (2007). Tomichia tristis. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. <www.iucnredlist.org>. Downloaded on 30 May 2011.
External links
edit- Davis G. M. (1981). "Different Modes of Evolution and Adaptive Radiation in the Pomatiopsidae (Prosobranchia: Mesogastropoda)". Malacologia 21(1-2): 209-262.
- Verdcourt B. (1951). "The distribution of the genus Tomichia Benson in Africa". Revue de Zoologie et de Botanique Africaines 44: 173-174.
- Verdcourt B. (1960). "A further collection of Tomichia hendrickxi (Verdcourt) from the Belgian Congo". Basteria 24: 3.