| Hydrophis atriceps Günther, 1864 Black-headed seasnake | 
| No Picture Available | 
| Family: | Elapidae () | |||
| Max. size: | ||||
| Environment: | demersal; marine; depth range - 22 m | |||
| Distribution: | Indo-West Pacific. | |||
| Diagnosis: | ||||
| Biology: | ||||
| IUCN Red List Status: | (LC); Date assessed: 15 February 2009 Ref. 123251) | |||
| Threat to humans: | ||||
| Country info: |  | |||