Report on the mammals of Quimsacocha National Recreation Area, Azuay Province, Ecuador Author Lee Jr, Thomas E. Author Tinoco, Nicolas Author Crockett, Seth C. Author Camacho, M. Alejandra Author Burneo, Santiago F. text Check List 2021 2021-01-19 17 1 125 131 http://dx.doi.org/10.15560/17.1.125 journal article 10.15560/17.1.125 1809-127X Sigmodon inopinatus Anthony, 1924 Material captured. One male ( QCAZ 17930), measurements (in mm): total 222, ear 22, foot 30; 03°03′37″S , 079° 13′40″W ; elevation 3,807 m ; 9 August 2018 ; collec- tors: Lee, Tinoco and Crockett collected this specimen in a paramo bog. Two skulls ( QCAZ 1940-41) were found in owl pellets in a paramo cliff face ( 03°03′32″S , 079°13′06″W ); 3 August 2018 . Identification. The dorsum is orange brown and washed with black. The base of the dorsal fur is dark gray ( Fig. 2G ). The ventral fur is light gray ( Tirira 2017 ). Short nasals, long incisive foramina, small auditory bullae and a narrow interorbital region distinguish this species from other Sigmodon ( Voss 2015a ) .