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Hydrophis ornatus

Ornate Reef Sea Snake

Venomous 💀💀💀💀 Very dangerous bite ref
Images automatically provided by Flickr & iNaturalist. Sporadic false assignment does occur.


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

  • up to 130 cm ref
  • Length Newborn

  • 19 to 34 cm ref
  • Reproduction

  • unknown ref
  • Pupil Shape (when closed!)

  • round (or oval) ref
  • Fangs

  • fixed ref front-fanged ref

Altitude range

Vertical distribution

-40 to 0 meter above sea level (a.s.l.) ref

Subspecies & Common Names

Hydrophis ornatus  CHINESE 淡灰海蛇 (Dàn Huī Hǎishé), 黑點海蛇 (Hēi Diǎn Hǎishé), ENGLISH Cochin Banded Sea Snake, Gray's Sea Snake, Ornate Reef Sea Snake, Spotted Sea Snake, FRENCH Hydrophidae Orne, SINHALA Muhudu Naya, UNCODED LANGUAGES Daryai Mar, Samundri Sanp ref
Hydrophis ornatus ornatus ref
Hydrophis ornatus maresinensis ENGLISH Ryukyu Ornated Sea Snake, JAPANESE Kuro Boshi Umi Hebi ref
Hydrophis ornatus godeffroyi ref

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 ornatus

  • Ornate reef sea snake
  • VI. snakeID

  • 3363
Look up complete taxonomic records of Hydrophis ornatus (including synonyms) at THE REPTILE DATABASE (by Peter Uetz et al).