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The common name false water cobra is an allusion to its ability to flatten its neck, similar to a cobra, as a defensive reaction to make it look larger and more intimidating. [9] Unlike the true cobra, though, the false water cobra stays in a horizontal position when it hoods, rather than rearing into a vertical position. [12]
Another large species in this family is the false water cobra (Hydrodynastes gigas) reaching a length of 3 m (9.8 ft), and a mass of 4.56 kg (10.1 lb), [79] [80] one of the largest venomous snakes in South America. The tiger rat snake (Spilotes pullatus), also living in South America, can reach a length of 2.7 m (8 ft 10 in). [81]
The false cobra (Malpolon moilensis), or hooded malpolon, is an opisthoglyphous snake found in parts of Africa and the Middle East. The name "false cobra" comes from the fact that while it is not a cobra , it imitates a cobra's stance by spreading its neck into a hood and hissing like the cobra.
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Naja annulata (formerly Boulengerina annulata), commonly known as the banded water cobra or the ringed water cobra, is a species of water cobra native to western and central Africa. The species is one of the two species of water cobra in the world, the other one being the Congo water cobra ( Naja christyi ).
The eastern coral snake or American cobra (Micrurus fulvius), which also does not rear upwards and produce a hood when threatened [4]: p.30 The false water cobra (Hydrodynastes gigas) is the only "cobra" species that is not a member of the Elapidae. It does not rear upwards, produces only a slight flattening of the neck when threatened, and is ...
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The crude venom of N. oxiana produced the lowest known lethal dose (LCLo) of 0.005 mg/kg, the lowest among all cobra species ever recorded, derived from an individual case of envenomation by intracerebroventricular injection. [16] The Banded water cobra's LD 50 was estimated to be 0.17 mg/kg via IV according to Christensen (1968).