Longhorn Cowfish

Lactoria cornuta

Habitat & Distribution :  Indian-Pacific Ocean

Diet: small invertebrates

Size: Up to 46 cm

Lifespan: .4 - 15 years

Deskription

The longhorn cowfish (Lactoria cornuta) is a uniquely shaped, slow-moving marine fish known for its box-like body and prominent, bull-like horns. They are part of the boxfish family (Ostraciidae) and are highly adapted for defense rather than speed.

Behavior

Longhorn cowfish (Lactoria cornuta) are solitary, slow-moving, and highly curious, known for hovering near coral reefs and sandy, shallow areas. They are omnivorous, using their mouths to blow jets of water into sand to expose buried invertebrates.

Reproduction

Longhorn cowfish (Lactoria cornuta) are oviparous, harem-forming fish that spawn in the open water at dusk. Males, territorial over 3–4 females, perform a spawning ritual where they rise in the water column and release eggs/sperm, which drift as planktonic larvae before settling

Communication & Perception

Longhorn cowfish (Lactoria cornuta) communicate primarily through sound production, territorial posturing, and potential chemical defenses when threatened. They are known to emit audible, low-frequency grunting sounds, particularly when stressed, handled, or caught

Predators

Big eye Tuna, Shark, Groupers