Mass: 5.8 kg based on Sanderson 1949 and Servín et al. 2003

Latitudinal range: -31.2° to 15.4°

Habitats: tropical/subtropical dry broadleaf forest (2), mangrove (1), tropical/subtropical savanna (1)

Found in 4 samples

Brazil: Formosa Military Training Area

Colombia: Palmar de Altamira (bosque)

Mexico: Reserva de la Biosfera La Encrucijada (secas)

Uruguay: Rivera (gallery forest)

♀ body mass	3856 kg	N = 1	Sanderson 1949
♂ body mass	11500 kg	N = 1	Sanderson 1949
♂ body mass	4500 kg	N = 1	Servín et al. 2003
♂ condylobasal length	117 mm	N = 1	Allen 1910
♂ condylobasal length	113 mm	N = 1	Allen 1910
♀ ear length	27 mm	N = 1	Sanderson 1949
♂ ear length	35 mm	N = 1	Sanderson 1949
♂ ear length	12 mm	N = 1	Servín et al. 2003
♀ head and body length	575 mm	N = 1	Sanderson 1949
♂ head and body length	740 mm	N = 1	Sanderson 1949
♀ hind foot length	104 mm	N = 1	Sanderson 1949
♂ hind foot length	100 mm	N = 1	Allen 1910
♂ hind foot length	123 mm	N = 1	Sanderson 1949
♂ hind foot length	64 mm	N = 1	Servín et al. 2003
♂ lower tooth row length	36.5 mm	N = 1	Allen 1910
♂ lower tooth row length	33.5 mm	N = 1	Allen 1910
♂ skull width	76.5 mm	N = 1	Allen 1910
♂ skull width	68 mm	N = 1	Allen 1910
♀ tail length	453 mm	N = 1	Sanderson 1949
♂ tail length	430 mm	N = 1	Allen 1910
♂ tail length	570 mm	N = 1	Sanderson 1949
♂ tail length	440 mm	N = 1	Servín et al. 2003
♂ total body length	1010 mm	N = 1	Allen 1910
♂ total body length	650 mm	N = 1	Servín et al. 2003
♂ upper tooth row length	32.2 mm	N = 1	Allen 1910
♂ upper tooth row length	29 mm	N = 1	Allen 1910

See also Lontra, Lontra canadensis