Microsciurus or dwarf squirrels is a genus of squirrels from the tropical regions of Central and South America.There are four recognized species, however, recent DNA analysis has shown that there is some confusion regarding the traditional classification of the Microsciurus species:Genus Microsciurus - dwarf squirrelsCentral American dwarf squirrel, Microsciurus alfari Allen, 1895, Costa Rica, Nicaragua, Panama, Northern ColombiaAmazon dwarf squirrel, Microsciurus flaviventer Gray, 1867, western Amazon basinWestern dwarf squirrel, Microsciurus mimulus Thomas, 1898, Ecuador, Colombia, PanamaSantander dwarf squirrel, Microsciurus santanderensis Hernández-Camacho, 1957, Central ColombiaWith a head and body length of 15 centimetres (5.9 in) and a 12 centimetres (4.7 in) long tail, dwarf squirrels are not as small as their name suggests; they are hardly smaller than the common red or gray squirrels.