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  • 21 Aug, 2019

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List Of Pilosans

Pilosa is an order of placental mammals. Members of this order are called pilosans, and include anteaters and sloths. They are found in South and Central America, generally in forests, though some species are found in shrublands, grasslands, and savannas. Pilosans primarily eat insects and leaves. They range in size from the silky anteater, at 36 cm (14 in) plus a 18 cm (7 in) tail, to the giant anteater, at 120 cm (47 in) plus a 90 cm (35 in) tail. No pilosans have population estimates, but the pygmy three-toed sloth is categorized as critically endangered.

The twelve extant species of Pilosa are divided into two suborders: Folivora, the sloths, and Vermilingua, the anteaters. Folivora contains two families: Bradypodidae, containing four species in one genus; and Choloepodidae, containing two species in one genus. Vermilingua also contains two families: Cyclopedidae, containing a single species, and Myrmecophagidae, containing three species in two genera. Dozens of extinct prehistoric pilosan species have been discovered, though due to ongoing research and discoveries the exact number and categorization is not fixed.

Conventions

IUCN Red List categories
Conservation status
 EX Extinct (0 species)
 EW Extinct in the wild (0 species)
 CR Critically Endangered (1 species)
 EN Endangered (0 species)
 VU Vulnerable (2 species)
 NT Near threatened (0 species)
 LC Least concern (7 species)

Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the pilosan's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted. All extinct species or subspecies listed alongside extant species went extinct after 1500 CE, and are indicated by a dagger symbol "†".

Classification

The order Pilosa consists of twelve extant species in two suborders: Folivora, the sloths, and Vermilingua, the anteaters. Folivora contains two families: Bradypodidae, containing four species in one genus; and Choloepodidae, containing two species in one genus. Vermilingua also contains two families: Cyclopedidae, containing a single species, and Myrmecophagidae, containing three species in two genera. Many of these species are further subdivided into subspecies. This does not include hybrid species or extinct prehistoric species.

Suborder Folivora

Suborder Vermilingua

Pilosa  

Pilosans

The following classification is based on the taxonomy described by the reference work Mammal Species of the World (2005), with augmentation by generally accepted proposals made since using molecular phylogenetic analysis, as supported by both the IUCN and the American Society of Mammalogists.

Suborder Folivora

Bradypodidae

Genus Bradypus Linnaeus, 1758 – four species
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population
Brown-throated sloth

Brown sloth

B. variegatus
Schinz, 1825

Seven subspecies
  • B. v. boliviensis
  • B. v. brasiliensis
  • B. v. ephippiger
  • B. v. gorgon
  • B. v. infuscatus
  • B. v. trivittatus
  • B. v. variegatus
Central America and northern South America
Map of range
Size: 42–80 cm (17–31 in) long, plus 2–9 cm (1–4 in) tail

Habitat: Forest

Diet: Leaves, flowers, and fruit of Cecropia trees
 LC 


Unknown Population declining

Maned sloth

Brown sloth

B. torquatus
Illiger, 1811
Eastern South America
Map of range
Size: 45–50 cm (18–20 in) long, plus 4–5 cm (2 in) tail

Habitat: Forest

Diet: Leaves
 VU 


Unknown Population declining

Pale-throated sloth

Brown sloth

B. tridactylus
Linnaeus, 1758
Northern South America
Map of range
Size: 45–75 cm (18–30 in) long, plus 4–6 cm (2 in) tail

Habitat: Forest

Diet: Twigs, buds, and leaves of Cecropia trees
 LC 


Unknown Population declining

Pygmy three-toed sloth

Drawing of brown sloth

B. pygmaeus
Anderson, Handley, 2001
Isla Escudo de Veraguas in Panama
Map of range
Size: 48–53 cm (19–21 in) long, plus 4–6 cm (2 in) tail

Habitat: Forest

Diet: Leaves
 CR 


Unknown Population declining

Choloepodidae

Genus Choloepus Illiger, 1811 – two species
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population
Hoffmann's two-toed sloth

Brown sloth

C. hoffmanni
Peters, 1858

Five subspecies
  • C. h. capitalis
  • C. h. florenciae
  • C. h. hoffmanni
  • C. h. juruanus
  • C. h. pallescens
Central America and northern and western South America
Map of range
Size: 54–72 cm (21–28 in) long, plus 1–3 cm (1 in) tail

Habitat: Forest, shrubland, and grassland

Diet: Leaves, as well as buds, twigs, shoots, fruits, and flowers
 LC 


Unknown Population declining

Linnaeus's two-toed sloth

Brown sloth

C. didactylus
(Linnaeus, 1758)
Northern South America
Map of range
Size: 60–86 cm (24–34 in) long, plus 1–2 cm (1 in) tail

Habitat: Forest

Diet: Berries, leaves, small twigs, and fruit, as well as insects
 LC 


Unknown Population declining

Suborder Vermilingua

Cyclopedidae

Genus Cyclopes Gray, 1821 – one species
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population
Silky anteater

Brown anteater

C. didactylus
(Linnaeus, 1758)

Seven subspecies
  • C. d. catellus
  • C. d. didactylus
  • C. d. dorsalis
  • C. d. eva
  • C. d. ida
  • C. d. melini
  • C. d. mexicanus
Central America and northern and eastern South America
Map of range
Size: 36–45 cm (14–18 in) long, plus 18–27 cm (7–11 in) tail

Habitat: Forest

Diet: Ants and termites
 LC 


Unknown Unknown

Myrmecophagidae

Genus Myrmecophaga Linnaeus, 1758 – one species
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population
Giant anteater

Brown and white anteater

M. tridactyla
Linnaeus, 1758

Three subspecies
  • M. t. artata
  • M. t. centralis
  • M. t. tridactyla
Central America and South America (former range in red)
Map of range
Size: 100–120 cm (39–47 in) long, plus 65–90 cm (26–35 in) tail

Habitat: Forest, savanna, shrubland, and grassland

Diet: Ants, termites, and soft-bodied grubs
 VU 


Unknown Population declining

Genus Tamandua Gray, 1825 – two species
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population
Northern tamandua

Brown and black anteater

T. mexicana
(Saussure, 1860)

Four subspecies
  • T. m. instabilis
  • T. m. mexicana
  • T. m. opistholeuca
  • T. m. punensis
Central America and northern South America
Map of range
Size: 47–77 cm (19–30 in) long, plus 40–68 cm (16–27 in) tail

Habitat: Forest and savanna

Diet: Ants and termites
 LC 


Unknown Unknown

Southern tamandua

Brown and black anteater

T. tetradactyla
(Linnaeus, 1758)

Four subspecies
  • T. t. nigra
  • T. t. quichua
  • T. t. straminea
  • T. t. tetradactyla
South America
Map of range
Size: 53–88 cm (21–35 in) long, plus 40–59 cm (16–23 in) tail

Habitat: Forest, savanna, and shrubland

Diet: Ants and termites, as well as bees and honey
 LC 


Unknown Unknown

References

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Sources