Marsh Deer (Blastocerus dichotomus: Cervidae) Bucks like this one can stand 1.3 m (4.2 ft) tall at the shoulders and its head and body length can reach (2.0 m) 6.6 ft long, Adults weight from 80-125 kg (176-276 lbs). This is the largest South American Cervidae. Their hoofs are large and have an elastic interdigital membrane (webbed feet) for life in marshes and swimming in deeper water during the wet season. South Wild, Pantanal, south of Pocon, Mato Grosso, Brazil. Pantanal with interspersed cerrado vegetation at ca. 128 m (420 ft) elevation.