Western dwarf squirrel
The western dwarf squirrel is a small tree squirrel in the genus Microsciurus and tribe Sciurini found in Colombia, Ecuador, and Panama.
The table below lists the three recognized subspecies of Microsciurus mimulus, along with any synonyms associated with each subspecies:
| Subspecies | Authority | Synonyms |
| M. m. mimulus | Thomas | none |
| M. m. boquetensis | Nelson | none |
| M. m. isthmius | Nelson | palmeri, vivatus |
