Two-toed Sloth, Choloepus didactylus & Choloepus hoffmanni
March 2009

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Two-toed Sloth


TAXONOMY & NOMENCLATURE

(Anderson & Hanley 2001) (Barros et al 2008) (Gaudin & McDonald 2008) (Naish 2005) (Wilson & Reeder 2005)

Describer (Date): Choloepus didactylus (Linnaeus 1758) Syst. Nat., 10 th ed., 1:35
                                 Choloepus hoffmanni (Peters 1858) Peters. 1858. Monatsb. K. Preuss. Akad. Wiss.

Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia
             Magnorder: Xenarthra (sloths, anteaters, and armadillos)
                Order: Pilosa (sloths and anteaters)
                    Family: Megalonychidae (includes living and extinct genera)
                           Genus: Choloepus (Two-toed Sloths)
                                  Species: Choloepus didactylus (Linnaeus' Two-toed Sloth)
                                  Species: Choloepus hoffmanni (Hoffmann's Two-toed Sloth)
                     Family: Family: Bradypodidae
                           Genus: Bradypus (Three-toed sloths)
                                  Species: Bradypus varigatus (Bolivian or Brown-throated sloth)
                                              Bradypus tridactylus (Pale-throated sloth)
                                              Bradypus torquatus (Maned sloth)
                                              Bradypus pygmaeus (Pygmy sloth) described in 2001 by Anderson & Handley


Taxonomic History and Nomenclature

Phylogeny



DISTRIBUTION & HABITAT

(Emmons 1990) (Gilmore 2008) (Merritt 2006) (Montgomery & Sunquist 1973)

Distribution
Habitat: Home Range:

PHYSICAL CHARACTERISTICS

(Adam 1999) (Gilmore et al 2000) (Goffart 1971) (Mendel 1981) (Meritt 1985) (Nowak 1999)

Body Weight: 4 to 9 kg (10 to 20 lbs); Newborns weigh about 350 to 454 grams (12 oz )
Body Length: Adults: 540 to 740 mm (21 to 29 inch long)
Tail Length: (C. didactylus) 23 ± 7 mm (about 1 inch )

General Pelage/ Skin Skeleton Teeth Ears Vision Internal Organs

Smell

Thermoregulation




BEHAVIOR & ECOLOGY

(Gilmore 2008) (Meritt 1985) (Montgomery & Sunquist 1978) (Ramprashad 1985) (Sunquist & Montgomery 1973)

Activity Cycle

Social Groups

Aggression

Communication
      Tactile       Vocalization Olfaction/Scent Marking Locomotion Interspecies Interaction

DIET & FEEDING

(Gilmore 2000)(Goffart 1971) (Parra 1978) (Sunquist & Montgomery 1978)


REPRODUCTION & DEVELOPMENT

(Eisenberg & Maliniak 1985) (Meritt 1985) (Nowak 1999) (Taube 2001)

Courtship (Based on captive observations) Reproductive Rate Gestation Life Stages
      Birth Infant (< 1 year old) Adult Longevity (Nowak 1999) Mortality

MANAGED CARE
(ISIS database) (Meritt)


POPULATION AND CONSERVATION STATUS

(Meritt 2006) (Aguilar & Fonseca 2008)

Population Status Threats to survival

Important Web Resources:


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