The term Neusticomys derives from the two ancient greek words νευστικός (neustikós), meaning "able to swim", and μῦς (mûs), meaning "mouse, rat".[2][3]N. monticolous and N. vossi primarily inhabit montante regions of west Columbia and eastern Ecuador, with the former noted to occur in the Andean Cordillera and the Occidental mountain range at elevations of 1,800-3,750 meters. The rest inhabit tropical lowland forests primarily in the northern and eastern regions of the Amazon rainforest, whereas N. peruviensis is an endemic species to Peru.[4][5]
This genus contains the following seven species:[4]
^ abPacheco, Victor (22 May 2020). "A revision of Neusticomys peruviensis (Rodentia: Cricetidae) with the description of a new subspecies". Journal of Mammalogy. 101 (3): 858–871. doi:10.1093/jmammal/gyaa011.
^Ochoa G., José; Soriano, Pascual (1991). "A New Species of Water Rat, Genus Neusticomys Anthony, from the Andes of Venezuela". Journal of Mammalogy. 72 (01): 97–103. doi:10.2307/1381983 – via JSTOR.