SciELO - Brasil - Sexual dimorphism in the electric knifefish, <i>Gymnorhamphichthys rondoni</i> (Rhamphichthyidae: Gymnotiformes) Sexual dimorphism in the electric knifefish, <i>Gymnorhamphichthys rondoni</i> (Rhamphichthyidae: Gymnotiformes)
Gymnorhamphichthys - Alchetron, The Free Social Encyclopedia
Friday Photospread: The Bizarre Thermometer Knifefish - AMAZONAS Magazine