50970 Phenacogaster microstictus Eigenmann, 1909 Characidae Characins; tetras Characinae Characiformes Teleostei South America: Essequibo and Demerara River basins. AMNH 214862 Phenacogaster microstictus AMNH 214873 Phenacogaster microstictus AMNH 215026 Phenacogaster microstictus AMNH 215158 Phenacogaster microstictus AMNH 215173 Phenacogaster microstictus AMNH 215174 Phenacogaster microstictus AMNH 215194 Phenacogaster microstictus AMNH 215219 Phenacogaster microstictus AMNH 214917 1934 Phenacogaster microstictus AMNH 215097 1935 Phenacogaster microstictus AMNH 16798 1938 Phenacogaster microstictus AMNH 39801 1964 Phenacogaster microstictus AMNH 54790 1979 Phenacogaster microstictus AMNH 54889 1979 Phenacogaster microstictus AMNH 55007 1979 Phenacogaster microstictus AMNH 93148 1989 Phenacogaster microstictus AMNH 93176 1989 Phenacogaster microstictus AMNH 93177 1989 Phenacogaster microstictus AMNH 91206 1990 Phenacogaster microstictus AMNH 91207 1990 Phenacogaster microstictus AMNH 91208 1990 Phenacogaster microstictus AMNH 91209 1990 Phenacogaster microstictus AMNH 91233 1990 Phenacogaster microstictus AMNH 91310 1990 Phenacogaster microstictus