Acalyptophis Boulenger

Rasmussen, Arne Redsted, Elmberg, Johan, Gravlund, Peter & Ineich, Ivan, 2011, Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key, Zootaxa 2894, pp. 1-20 : 3

Acalyptophis Boulenger

Acalyptophis peronii (Duméril) : ( Kharin, 1984b; Zhao & Adler, 1993, 2006).

Diagnostic characters: The only sea snake with spines on the head: parietal and frontal scales broken up, supra- and postoculars and adjacent scales with spines posteriorly. Scale rows around neck 18–24, rarely up to 27; scale rows around body 23–31, rarely 21 or 32; ventrals 142–222. Maxillary teeth behind fangs 5–8. Colouration: Body cream, grey or pale brown above, paler below, with brown/black bands, which are brighter ventrally. Sometimes has dark small bars or spots between the bands, tapering to a point on the sides. Size: 128 cm. General distribution: Gulf of Thailand, Vietnam, China, Taiwan, Hong Kong and the Australian region ( Smith, 1926; David & Ineich, 1999).