title: Tomichia
text: # Tomichia
  
  Tomichia is a genus of very small freshwater snails which have a gill and an operculum, gastropod mollusks or micromollusks 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
  