Tomichia

Tomichia
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Tomichiidae
Genus:	Tomichia; Benson, 1851
Diversity
	11 species

Tomichia is a genus of very small freshwater snails which have a gill and an operculum, gastropod molluscs or micromolluscs in the family Tomichiidae.

Distribution

The distribution of the genus Tomichia includes South Africa and Eastern Zaire. Tomichia is the only genus of Pomatiopsidae in Africa.

Ecology

This genus occurs is both freshwater and brackish water. There exist halophilic species of Tomichia which live in saline lakes such as Tomichia ventricosa.

Species

Brown (1994) recognized 10 species (7 in South Africa and 3 in Central Africa) and one undescribed species. Kameda & Kato (2011) recognized 11 species of Tomichia.

Species within the genus Tomichia include:

Tomichia cawstoni Connolly, 1939
Tomichia differens Connolly, 1939
Tomichia guillemei Leloup, 1953
Tomichia hendrickxi (Verdcourt, 1950)
Tomichia kivuensis Mandahl-Barth, 1974
Tomichia natalensis Connolly, 1939
Tomichia rogersi (Connolly, 1929)
Tomichia tristis (Morelet, 1889) - critically endangered
Tomichia ventricosa (Reeve, 1842) - type species
Tomichia zwellendamensis (Küster, 1852)
(?)Tomichia n.sp. - reported by Cohen (1986) from Lake Turkana

References

↑ Benson (1851). Annals and Magazine of Natural History (2)7: 377.
1 2 3 4 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.
1 2 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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 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

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.

[1] Benson (1851). Annals and Magazine of Natural History (2)7: 377.

[Kameda_2011-2] 1 2 3 4 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.

[WoRMS_2010-3] 1 2 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

[Brown_1994-4] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Brown D. S. (1994). Freshwater Snails of Africa and their Medical Importance. Taylor & Francis. ISBN 0-7484-0026-5.

[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

[6] 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.