Longhorn cowfish


  • Usually occurs singly. Juveniles may form small groups.
  • Feeds on benthic invertebrates.
  • Scales modified into bony plates, which interlock to form a carapace.
  • Releases ostracitoxin through skin when stressed to deter predators. The toxin can also be fatal for other species living in the same aquarium tanks as an individual of this species.


  • Body colour variable, can be green, olive, yellow or brown.
  • Blue dots on body.
  • A pair of horns in front of eyes. Another pair of horns near anal fin. Horns may be absent in very small individuals.
  • Large individuals possess long and truncate tail.

Common Name: Longhorn cowfish

Family Common Name: Boxfishes

Scientific Name: Lactoria cornuta___(Linnaeus, 1758)

Genus: Lactoria

Maximum Length: 46 cm (Total Length)