Guianan squirrel monkeyThe Guianan squirrel monkey (Saimiri sciureus) is a species of squirrel monkey from Guiana, Venezuela and Brazil. S. sciureus formerly applied to Humboldt's squirrel monkey and Collins' squirrel monkey, but genetic research in 2009 and 2015 revealed that these are distinct species.
Squirrel monkeySquirrel monkeys are New World monkeys of the genus Saimiri. Saimiri is the only genus in the subfamily Saimiriinae. The name of the genus is of Tupi origin (sai-mirím or çai-mbirín, with sai meaning 'monkey' and mirím meaning 'small') and was also used as an English name by early researchers. Squirrel monkeys live in the tropical forests of Central and South America in the canopy layer.
Collins' squirrel monkeyCollins' squirrel monkey (Saimiri collinsii) is a species of squirrel monkeyendemic to Brazil. It had been considered a subspecies of the common squirrel monkey (S. sciureus) until a genetic study by Jessica Lynch Alfaro et al. elevated it to species status. Male Collins' squirrel monkeys have a head and body length of about 38 cm (15 in) with a 37.6 cm (14.8 in) tail. Females have a head and body length of about 27 cm (11 in) with a 41.3 cm (16.3 in) tail.
Humboldt's squirrel monkeyHumboldt's squirrel monkey (Saimiri cassiquiarensis) is a species of squirrel monkey from Brazil, Colombia, Ecuador, Peru and Venezuela. It had previously been considered a subspecies of the common squirrel monkey, S. sciureus, but was elevated to full species status based on a genetic study by Carretero-Pinzón in 2009. A genetic study by Jessica Lynch Alfaro, et al indicated that the Ecuadorian squirrel monkey may be synonymous with Saimiri cassiquiarensis.
Ecuadorian squirrel monkeyThe Ecuadorian squirrel monkey (Saimiri cassiquiarensis macrodon) is a type of squirrel monkey. It had been considered a subspecies of the Guianan squirrel monkey, Saimiri sciureus, but was elevated to a full species, S. macrodon, based on a 2009 study by Carretero-Pinzón, et al. Based on subsequent genetic research by Jessica Lynch Alfaro, et al it was again reclassified as a subspecies of Humboldt's squirrel monkey.
BrazilCountry in South AmericaBrazil, officially the Federative Republic of Brazil, is the largest country in South America. It is also the world's fifth-largest country by area and the seventh-largest by population, with over 214 million people. Brazil is a federation composed of 26 states and a Federal District, which hosts the capital, Brasília. Its most populous city is São Paulo, followed by Rio de Janeiro.
EcuadorEcuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contains the Galápagos Islands in the Pacific, about 1,000 kilometers (540 nmi; 620 mi) west of the mainland. The country's capital is Quito, and the largest city is Guayaquil.
ColombiaColombia, officially the Republic of Colombia, is a country located in South America, with insular regions in North America. Colombia's mainland is bordered by the Caribbean Sea to the north, Venezuela to the east, Brazil to the southeast, Peru and Ecuador to the south and southwest, the Pacific Ocean to the west, and Panama to the northwest. Colombia is divided into 32 departments.
Amazon basinMajor drainage basin in South AmericaAmazon River basin.Countries where the Amazon basin is presentThe mouth of the Amazon RiverThe Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers a large area spreading across the countries of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, and Venezuela, as well as the territory of French Guiana.
SubspeciesA subspecies is a taxonomic rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated as subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are").
South AmericaContinentScheme for geographical regions and subregions used by the United Nations Statistics DivisionSouth America is a continent entirely in the Western Hemisphere and most in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern subregion of the Americas.*As an Amazon Associate I earn from qualifying purchases.