Red howler (Alouatta seniculus)
Primate Factsheets: Red howler (Alouatta seniculus)
Photo: Luiz Claudio Marigo
Red howlers are a member of the Atelinae, a subfamily of primates that includes the heaviest of the New World Monkeys
(Di Fiore & Campbell 2007). (Average weights for males can range between 6 and 7.6 kg (13.2-16.8 lbs)
while female weight averages range between 4.5 and 6.3 kg (9.9-13.9 lbs) in the
wild (Thorington et al. 1979; Camacho & Defler 1985; Ayres JM 1986 cited in
Ford & Davis 1992; Rodríguez & Boher 1988). Head and body length
in adults averages 52.3 and 57.0 cm (20.6 and 22.4 in) in males and 46.8 and
49.7 cm (18.4 and 19.6 in) in females (Thorington et al. 1979; Rodríguez
& Boher 1988).
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