Gymnotiformes
(Knifefishes)

photos by M.H.Sabaj
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Apteronotus albifrons (Linnaeus 1766) - Apteronotidae
Rio Inambari & mouth of Quebrada Hondonado (Madre de Dios Dr.), elevation 311 m, TCEP 04-49

Sternarchorhynchus - Apteronotidae
4183 or 4821
Rio Inambari & mouth of Quebrada Hondonado (Madre de Dios Dr.), elevation 311 m, TCEP 04-49

Gymnorhamphichthys hypostomus - Rhamphichthyidae
4803, Rio Madre de Dios at Isla Rolin (Madeira Dr.), elevation 164 m, TCEP 04-52

Gymnorhamphichthys hypostomus - Rhamphichthyidae
4105, Rio Manuripe (Ortón-Madre de Dios Dr.), elevation 165 m, TCEP 04-53

Gymnorhamphichthys hypostomus - Rhamphichthyidae
4105, Rio Manuripe (Ortón-Madre de Dios Dr.), elevation 165 m, TCEP 04-53