Fishes from the Río Alvarado drainage, Upper Río Magdalena Basin, Colombia Author Albornoz-Garzón, Juan G. Author Conde-Saldaña, Cristhian C. Author López-Delgado, Edwin O. Author García-Melo, Jorge E. Author Villa-Navarro, Francisco A. text Check List 2020 2020-09-18 16 5 1181 1198 http://dx.doi.org/10.15560/16.5.1181 journal article 10.15560/16.5.1181 1809-127X Creagrutus magdalenae Eigenmann, 1913 Figure 2H Material examined. COLOMBIA • 16, 53.1–79.4 mm SL; Río Alvarado-Caldas Viejo ; 04°36′41.2″N , 074°55′ 46.2″W ; 351 m a.s.l. ; 19 Sep. 2012 ; Juan G. Albor- noz-Garzón, Cristhian C. Conde-Saldaña leg.; CZUT- IC 10060 . • 6, 55.8–66.6 mm SL; Quebrada La Caima ; 04°35′45.8″N , 074°56′39.6″W ; 374 m a.s.l. ; 19 Dec. 2012 ; Juan G. Albornoz-Garzón , Cristhian C. Conde-Saldaña leg.; CZUT-IC 10372 . Identification. Third infraorbital in contact with the preopercle. Lateral line complete, with 34–37 pored scales. No lamellar flaps over pores of lateral line scales. Anal fin short with 9–11 branched rays. Caudal-peduncle depth (12.6–15.9% SL). Dark humeral blotch ovoid. Mid- dle caudal-fin rays without a dark horizontal stripe (Har- old and Vari 1994; Albornoz-Garzón et al. 2018 ).