Bradypus Linnaeus 1758

Bradypus Linnaeus 1758, Syst. Nat., 10th ed., Vol. 1: 34.

Type Species: Bradypus tridactylus Linnaeus 1758

Synonyms: Acheus F. Cuvier 1825; Arctopithecus Gray 1850; Eubradypus Lönnberg 1942; Hemibradypus Anthony 1906; Ignavus Blumenbach 1779; Scaeopus Peters 1864; Achaeus Erman 1835; Achaeus Gray 1843; Arctopithecus Gray 1843; Neobradypus Lönnberg 1942; Tardigradus Brisson 1762 .

Species and subspecies: 4 species with 7 subspecies:

Species Bradypus pygmaeus Anderson and Handley 2001

Species Bradypus torquatus Illiger 1811

Species Bradypus tridactylus Linnaeus 1758

Species Bradypus variegatus Schinz 1825

Subspecies Bradypus variegatus subsp. variegatus Schinz 1825

Subspecies Bradypus variegatus subsp. boliviensis Gray 1871

Subspecies Bradypus variegatus subsp. brasiliensis Blainville 1840

Subspecies Bradypus variegatus subsp. ephippiger Philippi 1870

Subspecies Bradypus variegatus subsp. gorgon Thomas 1926

Subspecies Bradypus variegatus subsp. infuscatus Wagler 1831

Subspecies Bradypus variegatus subsp. trivittatus Cornalia 1849

Discussion: Avila-Pires (in Wetzel and Avila-Pires, 1980) considered Scaeopus a separate genus.