Senegalese cobra

Senegalese cobra
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Naja
Species:
N. senegalensis
Binomial name
Naja senegalensis
(Trape, Chirio & Wüster, 2009)
Synonyms

Naja haje Merrem, 1820

The Senegalese cobra (Naja senegalensis) is a species of cobra in the genus Naja that is found in West Africa.

This species was long thought to be identical to the Egyptian cobra (Naja haje), but morphological and genetic differences have led to its recognition as a separate species.[2] It differs from Naja haje in normally having more than 23 dorsal scale rows around the neck and a uniformly dark head without any obvious pattern on the supralabial scales. This species does not spit venom.

Description

Adults are uniformly dark grey-brown dorsally, with slightly lighter lower flanks. The throat is also dark brown with occasional lighter individual ventral scales, whereas the rest of the ventral side is cream with dark grey-brown mottling. The head is dark grey-brown. Juveniles are grey with a black head and neck, and often carry a light blotch on the back of the hood. This normally disappears in adults, although a few specimens retain this marking into adulthood. Size: a large, robust cobra, maximum recorded total length 245 cm.[2]

Distribution

West Africa: documented from Senegal, Guinea, Mali, Burkina Faso, Ghana, Benin, Niger and Nigeria.[2]

Venom

The venom of this species is rich in long chain αlpha-neurotoxins. The intravenous injection murine LD50 is 0.39 mg/kg.[3]

References

  1. ^ Penner, J.; Wilms, T.; Wagner, P.; Niagate, B. (2013). "Naja senegalensis". IUCN Red List of Threatened Species. 2013: e.T13265924A13265927. doi:10.2305/IUCN.UK.2013-1.RLTS.T13265924A13265927.en. Retrieved 20 November 2021.
  2. ^ a b c "Phylogeography and systematic revision of the Egyptian cobra (Serpentes: Elapidae: Naja haje) species complex, with the description of a new species from West Africa" (PDF). Zootaxa. Magnolia Press. Retrieved 9 February 2012.
  3. ^ Wong, KY; Tan, KY; Tan, NH; Tan, CH (2021). "A Neurotoxic Snake Venom without Phospholipase A2: Proteomics and Cross-Neutralization of the Venom from Senegalese Cobra, Naja senegalensis (Subgenus: Uraeus)". Toxins. 13 (1): 60. doi:10.3390/toxins13010060. PMC 7828783. PMID 33466660.


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