GYMNOTIFORMES, Berg, 1940

Dutra, Guilherme Moreira, Jerep, Fernando C., Vari, Richard P. & Santana, Carlos David De, 2015, The pseudotympanum in the Gymnotiformes (Teleostei, Ostariophysi, Otophysi): homology and evolution of a previously unexplored system in Neotropical electric fishes, Zoological Journal of the Linnean Society 174 (1), pp. 114-129 : 128

GYMNOTIFORMES

Apteronotidae . Adontosternarchus clarkae, USNM 373298, 1 of 44, 88.1 mm LEA, Rio Amazonas, Brazil. Apteronotus albifrons, USNM 260256, 1 of 10, 118.3 mm LEA, Rio Caracol, Fundo Masaguaral, Venezuela. Apteronotus bonapartii, USNM 373120, 1 of 12, 176.8 mm LEA, Rio Negro, Brazil. Porotergus gimbeli, USNM 373007, 1 of 23, 137.9 mm LEA, Rio Jari, Brazil. Sternarchogiton preto, USNM 375459, 1 of 15, 198.1 mm LEA, Rio Solimões, Brazil. Sternarchella terminalis, USNM 373096, 1 of 53, 113.6 mm LEA, Rio Amazonas, Brazil. Sternarchorhamphus muelleri, USNM 373038, 1 of 54, 251.3 mm LEA, Rio Purus, Brazil. Sternarchorhynchus goeldii, USNM 373040, 1 of 4, 234.0 mm LEA, Rio Amazonas, Brazil. Sternarchorhynchus oxyrhynchus, USNM 228787, 1 of 8, 179.8 mm LEA, Río Orinoco, Venezuela. Sternarchorhynchus roseni, USNM 260248, 1 of 4, 145.5 mm LEA, Río Apure, Venezuela.

Gymnotidae . Electrophorus electricus, UF 116585, 1 of 3, 282.9 mm TL, Río Amazonas, Peru. MPEG 5370, 1, 460 mm TL; MPEG 25422, 1, 100 mm TL. Gymnotus carapo, USNM 225295, 1 of 6, 123.3 mm LEA, Corantijn River, Suriname. Gymnotus coropinae, USNM 225287, 1 of 25, 84.1 mm LEA, Corantijn River, Suriname. Gymnotus cylindricus, USNM 134701, 1 of 23, 189.2 mm LEA, Río Hondo, Guatemala. Gymnotus patherinus, USNM 297933, 1 of 94, 160.9 mm LEA, unnamed stream, São Paulo, Brazil.

Hypopomidae . Brachyhypopomus beebei, USNM 225558, 1 of 21, 31.5 mm (terminal portion of body damaged), Corantijn River, Suriname. Brachyhypopomus brevirostris, USNM 306904, 1 of 3, 170.0 mm LEA, Lago Janauari, Brazil. Brachyhypopomus occidentalis, USNM 293154, 1 of 6, 100.2 mm LEA, Río Cangandi, Panama. Brachyhypopomus pinnicaudatus, USNM 306811, 1 of 7, 88.7 mm LEA, Lago Janauari, Brazil. Hypopygus lepturus, USNM 330446, 1 of 37, 49.9 mm LEA, Rio Guaporé drainage, Brazil. Steatogenys elegans, USNM 373079, 1 of 107, 104.4 mm LEA, Amazonas, Brazil.

Rhamphichthyidae . Gymnorhamphichthys hypostomus, USNM 373107, 1 of 8, 193.4 mm (terminal portion of body damaged), Rio Negro, Brazil. Gymnorhamphichthys rosemariae, USNM 373108, 1 of 8, 145.7 mm LEA, Rio Negro, Brazil. Rhamphichthys drepanium, USNM 260250, 1 of 3, 226.5 mm (terminal portion of body damaged), Río Apure, Venezuela.

Sternopygidae . Distocyclus conirostris, USNM 373049, 1 of 55, 160.1 mm LEA, Rio Purus, Brazil. Eigenmannia humboldtii , IAvH-P 6806, 1, 205.7 mm LEA, Río Atrato, Colombia. Eigenmannia limbata, USNM 260240, 1 of 22, 155.2 mm LEA, Río Apure, Venezuela. Eigenmannia trilineata, UFRGS 5965, 1 of 32, 114.5 mm LEA, Lagoa Negra, Rio Grande do Sul, Brazil. Eigenmannia virescens, MCP 16797, 1 of 7, 177.1 mm LEA, Rio Uruguay drainage, Brazil. Rhabdolichops lundbergi, USNM 373059, 1 of 93, 136.6 mm (terminal portion of body damaged), Rio Purus, Brazil. Rhabdolichops zareti, ANSP 199233, 1 of 79, 116.0 mm LEA, Rio Orinoco, Venezuela. Sternopygus macrurus, USNM 394544, 1 of 11, 161.1 mm LEA, Río Orinoco, Venezuela.