46668 Apistogramma ortmanni (Eigenmann, 1912) Cichlidae Cichlids Geophaginae Cichliformes Teleostei South America: Essequibo River drainage, including the Potaro and Rupununi rivers, Corantijn and Cuyuni River basins. AMNH 13442 Apistogramma ortmanni AMNH 4459 Apistogramma ortmanni AMNH 9621 1929 Apistogramma ortmanni AMNH 215077 1935 Apistogramma ortmanni AMNH 14350 1937 Apistogramma ortmanni AMNH 14345 1938 Apistogramma ortmanni AMNH 72106 1982 Apistogramma ortmanni AMNH 72979 1983 Apistogramma ortmanni