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Naja is a genus of venomous elapid snakes commonly known as cobras (or "true cobras"). Members of the genus Naja are the most widespread and the most widely recognized as "true" cobras. Various species occur in regions throughout Africa, Southwest Asia, South Asia, and Southeast Asia.
Although venom toxicity values can vary greatly even among specimens of the same species, the Philippine cobra is considered to possess one of the more toxic venoms among the Naja (cobra) species. According to Tan et al., the murine LD 50 via the IV route for this species is 0.18 mg/kg (0.11-0.3 mg/kg). [10]
The population currently included in Naja sumatrana have a confusing history. The species was first defined as currently understood in 1989. [9] Previously, the populations of this species were assigned to several different subspecies of Naja naja (Indian cobra), in particular N. n. sumatrana (Sumatra), N.n. sputatrix (Peninsular Malaysia) and N.n. miolepis (Borneo, Palawan). [10]
Some species will inject venom in the majority of their bites, but still deliver high number of dry bites (40–45%) include: Naja sumatrana, Naja melanoleuca, Naja atra, Naja mossambica and Naja katiensis. Within this genus, there are a few species in which dry bites are very rare. Envenoming occurs in at least 75–80% of bite cases involving ...
The monocled cobra (Naja kaouthia), also called monocellate cobra and Indian spitting cobra, is a venomous cobra species widespread across South and Southeast Asia and listed as Least Concern on the IUCN Red List.
The only "cobra” species which occurs in this region is Naja oxiana, so any “cobra” observed in Kazakhstan would likely be of this species. [citation needed] Naja oxiana is often found in arid and semiarid, rocky or stony, shrub- or scrub-covered foothills [12] at elevations up to about 3,000 m (9,800 ft) above sea level. This is also the ...
Other snakes that resemble Naja naja are the banded racer Argyrogena fasciolata and the Indian smooth snake Wallophis brachyura. [6] Also, the monocled cobra (Naja kaouthia) may be confused with Naja naja; however, the monocled cobra has an O-shaped pattern on the back of the hood, while the Indian cobra has a spectacles-shaped pattern on its hood.
The four venomous snake species responsible for causing the greatest number of medically significant human snake bite cases on the Indian subcontinent (majorly in India and Sri Lanka) are sometimes collectively referred to as the Big Four.