FIGURE 1 in A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae)

FIGURE 1 | Early drawings of Rhamphichthys species. A. Seba's (1759) illustration of Rhamphichthys, later named by Linnaeus as Gymnotus rostratus (1766). B. Rhamphichthys marmoratus holotype from Castelnau (1855). C. Rhamphichthys rostratus from Bloch, Scheneider (1801), same specimen latter named as R. blochi by Kaup (1855). D. Rhamphichthys pantherinus holotype from Castelnau (1855). Drawings taken from the original publications and slightly modified to a clear white background.