Diagnosis | DESCRIPTION. Head very small, body very slender anteriorly, compressed posteriory and two to three times diameter of neck; 4–5 maxillary teeth behind venom fangs; scales at midbody subimbricate, hexagonal in shape, often with a median tubercle or keel; 6, occasionally only 5, upper labials, 3rd and 4th border eye; scales in 23–31 rows around neck, 37–45 around midbody; ventrals 328–414, distinct throughout; color (live) bluish white (greyish in preserved specimens), with 60–80 dark grey (black) bands, anteriorly they encircle body and are about twice as broad as the interspaces, posteriorly they narrow on the sides and may be incomplete below; head black or dark grey with curved yellow horseshoe-shaped marking across snout and extending back along sides of head. (Modified from Smith 1926:100–101 and Rasmussen et al. 2011:5, Leviton et al. 2014: 504).
Diagnostic characters: Head small, body long and slender anteriorly. Scale rows around neck 25–31; scale rows around body 3–45; ventrals 328–414. Maxillary teeth behind fangs 4–5. Colouration: Body bluish white with 60 to 80 dark or black bands. Anteriorly these completely encircle the body, but posteriorly they narrow on the sides and may be incomplete below. Head blackish, with a yellow horseshoe mark on the upper side. |
References |
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- Günther, A. 1872. On the reptiles and amphibians of Borneo. Proc. Zool. Soc. London 1872: 586-600. - get paper here
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- Kharin, V.E. 2004. A review of sea snakes of the genus Hydrophis sensu stricto (Serpentes, Hydrophiidae). [in Russian]. Biologiya Morya (Vladivostok) 30 (6): 447-454 - get paper here
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- RASMUSSEN, ARNE REDSTED; JOHAN ELMBERG, PETER GRAVLUND & IVAN INEICH 2011. Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key. Zootaxa 2894: 1–20 - get paper here
- Smith, M.A. 1917. Preliminary diagnoses of four new sea snakes. J. Nat. Hist. Soc. Siam 2: 340 - get paper here
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- Stuebing, R.B. & INGER, R.F. 1999. A field guide to the snakes of Borneo. Natural history Publications (Borneo), Kota Kinabalu, 254 pp. [corrections in HR 31: 124]. - get paper here
- Stuebing, R.B., Inger, R.F. & Lardner, B. 2014. A field guide to the snakes of Borneo, second edition. Natural history Publications (Borneo)
- Taylor,E.H. 1965. The serpents of Thailand and adjacent waters. Univ. Kansas Sci. Bull. 45 (9): 609-1096 - get paper here
- VORIS, HAROLD K. 2017. Diversity of Marine Snakes on Trawling Grounds in the Straits of Malacca and the South China Sea. Tropical Natural History 17 (2): 65–87 - get paper here
- Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
- Weinell, Jeffrey L.; Errol Hooper, Alan E. Leviton, Rafe M. Brown 2019. Illustrated Key to the Snakes of the Philippines. Proc. Cal. Acad. Sci. (4) 66 (1): 1-49 - get paper here
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