Fishes from the Río Alvarado drainage, Upper Río Magdalena Basin, Colombia Albornoz-Garzón, Juan G. Conde-Saldaña, Cristhian C. López-Delgado, Edwin O. García-Melo, Jorge E. Villa-Navarro, Francisco A. Check List 2020 2020-09-18 16 5 1181 1198 Ardila-Rodriguez, 2017 Ardila-Rodriguez 2017 [810,1394,320,345] Actinopterygii Trichomycteridae Trichomycterus Animalia Siluriformes 8 1189 Chordata species mogotensis   Material examined.  COLOMBIA• 12, 25.7–75.8 mmSL; RíoAlvarado-El País; 04°27′37.9″N, 075°07′45.2″W;  909 ma.s.l.;  19 Sep. 2012; Cristhian C. Conde-Saldaña, Juan G. Albornoz-Garzónleg.; CZUT-IC 10254. • 16, 24.8–54.3 mmSL; Quebrada Chumba; 04°29′06.2″N, 075°05′48.6″W;  973 ma.s.l.;  20 Sep. 2012; Juan G. Albornoz-Garzón, Cristhian C. Conde-Saldañaleg.; CZUT-IC 10282.  Identification.Relatively medium body size (largest specimen 85 mmSL). Head triangular in dorsal view. Premaxilla with 37 conical teeth arranged in three irregular rows; dentary with conical 37 teeth arranged in three irregular rows. Interopercle with 37 odontodes. Opercle with 23 odontodes. Pectoral fin with seven branched rays. Caudal fin emarginated. Body brown with dark diffuse dots on dorsum and dorsolateral region of trunk (García- Melo 2009; Ardila-Rodríguez 2017b). 2012-09-19 Cristhian C. Conde-Saldana & Juan G. Albornoz-Garzon Colombia 909 4.4605274 Rio 1 -75.12923 Pais 8 1189 CZUT-IC 10254 1 2012-09-20 Juan G. Albornoz-Garzon & Cristhian C. Conde-Saldana Colombia 973 4.4850554 Quebrada Chumba 1 -75.09683 8 1189 CZUT-IC 10282 1