Heptapteridae, T.N.Gill, 1861

Albornoz-Garzón, Juan G., Conde-Saldaña, Cristhian C., López-Delgado, Edwin O., García-Melo, Jorge E. & Villa-Navarro, Francisco A., 2020, Fishes from the Río Alvarado drainage, Upper Río Magdalena Basin, Colombia, Check List 16 (5), pp. 1181-1198 : 1187-1188

Heptapteridae undescribed

Figure 3D

Material examined. COLOMBIA • 3, 44.3–62.0 mm SL; Río Alvarado-Puente ; 04°31′11.3″N, 074°59′14.0″W; 521 m a.s.l.; 12 Dec. 2012; Cristhian C. Conde-Saldaña, Juan G. Albornoz-Garzón leg.; CZUT-IC 10417 . • 2, 40.9– 42.4 mm SL; Río Alvarado-Chucuní ; 04°27′56.7″N ,

075°03′46.7″W; 697 m a.s.l.; 13 Dec. 2012; Cristhian C. Conde-Saldaña, Juan G. Albornoz-Garzón leg.; CZUT- IC 10452.

Identification. Body moderately elongated. Body deep (9.2–16.6% SL). Cleithral width: 14.0–18.8% SL. Head length: 18.4–22.1% SL. Maxillary barbel reaching pec- toral-fin insertion. Adipose fin rounded (17.6–30.2% SL, its origin anterior to anal-fin; adipose-fin origin equi- distant between dorsal and caudal fins). Adipose-fin depth (2.2–4.6% SL). Caudal fin forked with both lobes rounded, upper lobe longer than lower lobe. Body brown with scattered minute melanophores along body. A conspicuous pale collar around posterior region of head and pale blotch in front of dorsal fin. Fins hyaline.