Tomichia

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