Hydrophis spiralis
Encyclopedia
Yellow Sea Snake Hydrophis spiralis is a species of sea snake.
Diagnostic Characters- Scales on thickest part of body with rounded or pointed tips, imbricate; 6-7 maxillary teeth behind fangs; normally 1 anterior temporal; 6-8 upper labials; 25-31 scale rows around neck, 33-38 around midbody (increase from neck to midbody 4-8); ven-trals 295-362, distinct throughout, about twice as broad as adjacent body scales; yellowish or yel-lowish- green above, dorsal scales edged with black, 41-46 narrow black bands encircle body, the bands usually less than one-third the width of the lighter interspaces; head in young black with yel-low horseshoe-shaped marking, in adult head usually yellow. Total length males 1620 mm, females 1830 mm; tail length males 140 mm, females 120 mm.
Anatomy
This is perhaps the longest species of seasnake (up to 2.75 m).Diagnostic Characters- Scales on thickest part of body with rounded or pointed tips, imbricate; 6-7 maxillary teeth behind fangs; normally 1 anterior temporal; 6-8 upper labials; 25-31 scale rows around neck, 33-38 around midbody (increase from neck to midbody 4-8); ven-trals 295-362, distinct throughout, about twice as broad as adjacent body scales; yellowish or yel-lowish- green above, dorsal scales edged with black, 41-46 narrow black bands encircle body, the bands usually less than one-third the width of the lighter interspaces; head in young black with yel-low horseshoe-shaped marking, in adult head usually yellow. Total length males 1620 mm, females 1830 mm; tail length males 140 mm, females 120 mm.