Eunectes deschauenseei
Eunectes deschauenseei, commonly known as dark-spotted anaconda or De Schauensee's anaconda, is a boa species endemic to northeastern South America. No subspecies are currently recognized. Like all boas, it is a non-venomous constrictor. Taxonomy. The specific name, "deschauenseei", is in honor of American ornithologist Rodolphe Meyer de Schauensee, who donated a specimen to the Philadelphia Zoo in 1924. The type locality given is "probably collected on the island of Marajo at the mouth of the Amazon". Distribution and habitat. "Eunectes deschauenseei" is found in South America, in north Brazil (Pará and Amapá states) and French  Guiana. "E. deschauenseei" is a semi-aquatic species usually found in swampy, seasonally flooded freshwater areas at elevations below . Description. Adult males measure and adult females in snout–vent length. Reproduction. Vitellogenesis in "E. deschauenseei" probably occurs from autumn to spring (May to December). Gestation may last as long as nine months. Litter size among five gravid females ranged from 3 to 27 (mean 10.6). Newborns measure in snout–vent length. Conservation. The savanna habitat of "E. deschauenseei" is highly threatened by agricultural expansion, but the threat posed on this species is not known.