Bradypus tridactylus Linnaeus 1758 Bradypus tridactylus Linnaeus 1758, Syst. Nat., 10th ed., Vol. 1: 34. Type Locality: "Americæ meridionalis arboribus;" restricted to Surinam by Thomas (1911 a). Vernacular Names: Pale-throated Sloth. Synonyms: Bradypus ai (Lesson 1827); Bradypus blainvillii (Gray 1850); Bradypus cuculliger Wagler 1831; Bradypus cummunis Lesson 1841; Bradypus dysonii (Gray 1869); Bradypus flaccidus (Gray 1850); Bradypus guianensis Blainville 1840; Bradypus gularis Rüppell 1842; Bradypus smithii (Gray 1869); Bradypus flaccions Sanderson 1949. Distribution: Guyana, Suriname, French Guiana, Venezuela south of the Orinoco, and N Brazil (south to the Amazonas /Solimões). Conservation: IUCN – Lower Risk (lc).

Published as part of Wilson, Don E. & Reeder, DeeAnn, 2005, Order Pilosa, pp. 100-103 in Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1, Baltimore :The Johns Hopkins University Press on page 100, DOI: 10.5281/zenodo.7316519