Prostoma

Prostoma is a genus of freshwater nemerteans, containing the following species:
 * Prostoma asensoriatum Montgomery, 1896
 * Prostoma canadiensis Gibson & Moore, 1978
 * Prostoma communopore Senz, 1996
 * Prostoma eilhardi (Montgomery, 1894)
 * Prostoma graecense (Böhmig, 1892)
 * Prostoma hercegovinense Tarman, 1961
 * Prostoma jenningsi Gibson & Young, 1971
 * Prostoma kolasai Gibson & Moore, 1976
 * Prostoma ohmiense Chernyshev et al., 1998
 * Prostoma puteale Beauchamp, 1932