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Gongylosoma nicobariensis is a species of snake found in the Nicobar Islands of India. Species known only from its holotype.


Rostral low, wide, not reaching the top of the head; nostril between two nasals; internasals about half the size of the prefrontals ; frontal somewhat larger than the supraoculars; parietals about one fourth larger than the frontal, in contact with both post-oculars ; loreal united with the postnasal; one pre- and two post-oculars ; temporals short 1+2 (Smith, 1943 gives 2+2); upper labials 7, third and fourth entering the eye; both pairs of chin-shields subequal in size. Scales in 17 rows. Ventrals 189; anal 2 divided; subcaudals 87 (Smith gives 84). Anterior half of the body reddish brown above, posterior blackish grey; head above blackish, the three first labials with yellow spots; a short broad yellow streak from behind and below the eye posteriorly to the angle of the mouth; a black collar, margined on both sides with an interrupted yellow band, of which the anterior is the most distinct; an indistinct series of blackish-grey dorsal spots, almost forming a dark undulating band; sides marbled and freckled blackish grey, this colour being separated from the upper brown one by a series of closely set black spots which are partially conspicuous on the posterior part of the body: chin dusky; lower parts yellow with a vermilion tinge, each ventral with a large black spot near its outer extremity. Total length 17.3 inches; tail 4.2.[1]

Location: Camorta in Nicobar Islands


  1. Boulenger, G. A. 1890. Fauna of British India. Reptilia and Amphibia. Under Ablabes nicobariensis pp.307-308


  • Das, I. 1999 Biogeography of the amphibians and reptiles of the Andaman and Nicobar Islands, India. In: Ota,H. (ed) Tropical Island herpetofauna.., Elsevier, pp. 43-77
  • Smith, M. A. 1943. Fauna of British India. Reptila and Batrachia. p. 185
  • Stoliczka, F. 1870 Observations on some Indian and Malayan Amphibia and Reptilia. J. Asiat. Soc. Bengal, Calcutta, 39:134-228.
  • Stoliczka, F. 1870 Observations of some Indian and Malayan Amphibia and Reptilia. Ann. Mag. Nat. Hist. (4) 6: 105-109

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