![]() ![]() Within the genus Pseudonaja, the eastern brown snake has the largest diploid number of chromosomes at 38 those of the other species range from 30 to 36. Wells split the genus Pseudonaja, placing the eastern brown snake in the new genus Euprepiosoma, though this has not been recognised by other authors, and Wells has been strongly criticised for a lack of rigour in his research. In 2002, Australian herpetologist Richard W. This classification has been followed by subsequent authors. The brown snakes were moved from Diemenia/Demansia to Pseudonaja by Australian naturalist Eric Worrell in 1961 on the basis of skull morphology, and upheld by American herpetologist Samuel Booker McDowell in 1967 on the basis of the muscles of the venom glands. In subsequent literature, it was known as Demansia textilis as Diemenia was regarded as an alternate spelling of Demansia. Belgian-British naturalist George Albert Boulenger called it Diemenia textilis in 1896, acknowledging Duméril, Bibron, and Duméril's name as having priority. kubingii were named for adults, and all represented the same species, which he called Diemenia superciliosa. After examining all specimens, Günther concluded that Furina textilis and Diemansia annulata were named for young specimens and Pseudoelaps superciliosus, P. He concluded the original description was based on an immature specimen and sent an adult to Günther, who catalogued it under the new name the same year when cataloguing new species of snakes in the British Museum's collection. Gerard Krefft, curator of the Australian Museum, reclassified Duméril, Bibron, and Duméril's species in the genus Pseudonaia in 1862 after collecting multiple specimens and establishing that the markings of young snakes faded as they grew into adult brown snakes. Italian naturalist Giorgio Jan named Pseudoelaps sordellii and Pseudoelaps kubingii in 1859. German-British zoologist Albert Günther described the species as Demansia annulata in 1858. German herpetologist Johann Gustav Fischer described it as Pseudoelaps superciliosus in 1856, from a specimen collected from Sydney. Due to differences in appearance, different specimens of the eastern brown snake were categorised as different species in the early 19th century. They gave it the binomial name Furina textilis – furine tricotée (knitted furin) in French – from a specimen collected in October 1846 by Jules Verreaux, remarking that the fine-meshed pattern on the snake's body reminded him of fine stockings, which was the inspiration for the name. French zoologists André Marie Constant Duméril, Gabriel Bibron, and Auguste Duméril were the first to describe the species in 1854. In it, he reported a snake that fits the description of the eastern brown snake, but did not name it. John White, the surgeon-general of the First Fleet to New South Wales, wrote, A Journal of a Voyage to New South Wales in 1790, which described many Australian animal species for the first time. One of the main components of the venom is the prothrombinase complex pseutarin-C, which breaks down prothrombin. The main effects of its venom are on the circulatory system- coagulopathy, haemorrhage ( bleeding), cardiovascular collapse, and cardiac arrest. ![]() It is considered the world's second-most venomous land snake after the inland taipan ( Oxyuranus microlepidotus), based on its LD 50 value ( subcutaneous) in mice. The International Union for Conservation of Nature classifies the snake as a least-concern species, though its status in New Guinea is unclear. The eastern brown snake is found in most habitats except dense forests, often in farmland and on the outskirts of urban areas, as such places are populated by its main prey, the house mouse. The colour of its surface ranges from pale brown to black, while its underside is pale cream-yellow, often with orange or grey splotches. ![]() The adult eastern brown snake has a slender build and can grow to 2 m (7 ft) in length. It was first described by André Marie Constant Duméril, Gabriel Bibron, and Auguste Duméril in 1854. The species is native to eastern and central Australia and southern New Guinea. The eastern brown snake ( Pseudonaja textilis), often referred to as the common brown snake, is a species of highly venomous snake in the family Elapidae. ![]()
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