Illustrated and online catalog of type specimens of freshwater fishes in the Colección de Peces Dulceacuícolas of Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH-P), Colombia Author Donascimiento, Carlos Author Cárdenas-Bautista, Johann-Stephens Author Acosta, Kevin Giancarlo Borja Author González-Alvarado, Arturo Author Medina, Claudia A. text Zootaxa 2016 4171 3 401 438 journal article 38086 10.11646/zootaxa.4171.3.1 30c6dfb2-aa6a-493e-89cb-68bb6a297f67 1175-5326 260788 57BC94EC-FF8B-4F44-BC26-61C8969135D6 Apteronotidae Adontosternarchus nebulosus Lundberg & Cox Fernandes, 2007 : 28 , figs. 1–2. Paratypes ( Fig. 2 ). IAvH-P 8585 (2, 91.6–106.0 mm TL). Brazil , Amazonas , Amazon River Basin , rio Solimões , below rio Purus , collected with 3 m bottom trawl, 03°35’51.4”S , 61°07’40.8”W ; M. Toledo-Piza et al ., 31 Jul 1996 . FIGURE 1. Holotype of Gymnotus ardilai , IAvH-P 3477, 430 mm LT (scale bar = 1 cm). Photograph by C. DoNascimiento. FIGURE 2. Paratype of Adontosternarchus nebulosus , IAvH-P 8585, 106.0 mm TL (scale bar = 1 cm). Photograph by M. H. Sabaj Pérez. Apteronotus eschmeyeri de Santana, Maldonado-Ocampo, Severi & Mendes, 2004 : 410 , figs. 1–2. Paratypes ( Fig. 3 ). IAvH-P 3304 (8, 159.8– 286.3 mm TL). Colombia , Tolima , Honda , Magdalena River basin, río Magdalena , 05°15’N 74°50’W ; J. A. Maldonado-Ocampo , 23 Feb 2003 . Apteronotus galvisi de Santana, Maldonado-Ocampo & Crampton, 2007 : 118 , fig. 1. Holotype ( Fig. 4 ). IAvH-P 8133 ( 1, 184.4 mm TL). Colombia , Casanare , Tauramena , Orinoco River Basin , río Meta drainage, río Cusiana , bridge El Venado , on road Yopal-Pore , 05°00’50”N 72°41’30.9”W , elevation 305 m ; J. Bogotá et al ., 11 Apr 2006 . Remarks: this specimen came from IAvH-P 8130. Paratypes . IAvH-P 8129 (6, 130.4– 174.2 mm TL). Colombia , Casanare , Yopal , Orinoco River Basin , río Meta drainage, quebrada La Aguatoca at bridge on road to Morro , 05°26’21.2”N 72°27’09.7”W , elevation 357 m ; J . Bogotá et al ., 10 Apr 2006 . FIGURE 3. Paratypes of Apteronotus eschmeyeri , IAvH-P 3304, male, 286.0 mm TL (above); female, 241.4 mm TL (below) (scale bar = 1 cm). Photograph by C. DoNascimiento. FIGURE 4. Holotype of Apteronotus galvisi , IAvH-P 8133, 184.4 mm TL (scale bar = 1 cm). Photograph by C. DoNascimiento. Remarks: 6 paratypes cited in original description, 1 specimen with tail broken (151.0 mm TL), 1 additional specimen cataloged in the same lot and damaged in the anterior region ( 137.8 mm TL); total length of smaller specimen in this lot different from that reported in original description (125.0 mm TL). IAvH-P 8130 (2, 97.5–99.2 mm TL). Collected with holotype. IAvH-P 8131 (2, 124.8– 162.6 mm TL). Colombia , Casanare , Orinoco River Basin , río Meta drainage, río Pauto at bridge on road to Yopal-Pore , 05°33’44”N 72°08’44”W , elevation 306 m ; J. Bogotá et al ., 12 Apr 2006 . IAvH-P 8132 (2, 98.3–158.4 mm TL). Colombia , Casanare , Sabanalarga , Orinoco River Basin , río Meta drainage, río Upía at bridge on road to Sisga , 04°49’09.4”N 73°04’57.6”W , elevation 327 m ; J. Bogotá et al ., 14 Apr 2006 . IAvH-P 8167 (3, 170.6– 189.8 mm TL) . Colombia , Casanare , Yopal , Orinoco River Basin , río Meta drainage, río Cravo Sur at suspension bridge, 05°25’37.6”N 72°27’11.6”W , elevation 424 m ; J. Bogotá et al ., 10 Apr 2006 . Apteronotus milesi de Santana & Maldonado-Ocampo, 2005 : 224 , figs. 1–2. Holotype ( Fig. 5 ). IAvH-P 3996 ( 160.4 mm TL). Colombia , Valle del Cauca , Ansermanuevo, Hacienda El Amparo , Cauca River Basin , río Chanco , 04°46’N 75°58’W , elevation 950 m ; A. Ortega , 18 Mar 2002 . Paratypes . IAvH-P 3997 (9, 108.0– 211.4 mm TL). Collected with holotype. Remarks: 13 paratypes cited in original description, 4 specimens unaccounted for; total length of smaller specimen in this lot different from that reported in original description (125.0 mm TL).