Transancistrus santarosensis:

MEPN-11220, 4 ex., 26.3–52.0 mm SL, Ecuador, El Oro Province, Santa Rosa River, near Bado, approx . 03°33’31”S 79°56’48”W, N. Lujan, D. Taphorn & R. Barriga, 29 August 2012. MBUCV-V-35694, 4 ex., 62.5–94.6 mm SL, Ecuador, Bolívar Province, Guayas River basin, Vinces River system, Caluma river, near Guaranda, without additional data.