Hydrophis gracilis

Slender sea snake

Venomous 💀💀💀💀 Very dangerous ref
Images provided by Flickr-/iNaturalist-API. Sporadic false assignments may occur.


The bite of most elapids is not painful. You can be bitten and envenomated without noticing it.
  • Length Adult

  • up to 122 cm ref
  • Length Newborn

  • unknown
  • Weight Range

  • ??? gr - ??? gr
  • Pupil Shape

  • Dentition Type

  • fixed front fangs
  • Teeth/Fang Length


Altitude range

Vertical distribution

-30 to ??? meter above sea level ref

Subspecies & Common Names

Hydrophis gracilis  0 DE Kleinköpfige Ruderschlange, EN Banded Small headed Sea Snake, Common Small headed Sea Snake, Graceful slender sea snake, Graceful Small headed Sea Snake, Gracile Small headed Sea Snake, John's Sea Snake, Slender sea snake, Small headed Slender Sea Snake, LOCAL Daryai mar, Samundri sanp, SI Muhudu Naya, ZH 小頭海蛇 (Xiǎo tóu hǎishé)

Full Taxonomy

  • I. Superfamily Colubroidea

  • Colubrids, elapids and vipers
  • II. Family Elapidae

  • Elapids
  • III. Subfamily Hydrophiinae

  • Sea snakes
  • IV. Genus Hydrophis

  • Sea snakes
  • V. Species Hydrophis gracilis

  • Slender sea snake
  • VI. snakeID

  • 618