Order Rodentia - Family Sciuridae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 754 818 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Microsciurus mimulus Thomas 1898 Microsciurus mimulus Thomas 1898 , Ann. Mag. Nat. Hist., ser. 7, 2: 266 . Type Locality: Ecuador , Esmeraldas , Cachavi, 665 ft. ( 203 m ). Vernacular Names: Western Dwarf Squirrel . Subspecies: : Subspecies Microsciurus mimulus subsp. mimulus Thomas 1898 Subspecies Microsciurus mimulus subsp. boquetensis Nelson 1903 Subspecies Microsciurus mimulus subsp. isthmius Nelson 1899 Distribution: NW Ecuador , N Colombia , and Panama . Conservation: IUCN – Lower Risk (lc). Discussion: See Hall (1981:440) and Handley (1966 a ) .