Fin's Fish Guide
The Horn shark (Heterodontus francisci) is a saltwater fish of the family Heterodontidae that grows up to 122 cm.
Description
The horn shark is a small, sluggish bottom shark of the family Heterodontidae from the eastern Pacific. It grows to about 1.2 metres and has a blunt, broad head with prominent brow ridges and a stout spine in front of each of its two dorsal fins. By day it shelters solitarily in rock crevices, kelp beds and small caves and often returns to the same resting place; by night it hunts bottom animals such as sea urchins, molluscs and crustaceans, crushing them with powerful teeth. The dorsal spines can cause injury if handled carelessly. Otherwise the species is harmless to humans.
Frequently asked questions
How do you recognise the Horn shark?
The Horn shark has an elongate, eel-like body, is mainly brown and shows a spots pattern. Sturdy spine in front of each dorsal fin and powerful crushing teeth to crack crustaceans.
Where does the Horn shark live?
The Horn shark lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Pacific, from California to the Gulf of California.
How big does the Horn shark get?
The Horn shark grows to a maximum of about 122 cm. On average the species is around 97 cm.
Is the Horn shark dangerous to humans?
The Horn shark can cause injury; handle it with care. If pricked by a dorsal spine, clean and disinfect the wound thoroughly and watch for signs of infection; consult a doctor if in doubt.
Is the Horn shark edible?
The Horn shark is rarely eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Heterodontus
More from the family Heterodontidae
Want the complete picture on the Horn shark?
Point your camera at the fish and Fin names the species in seconds. Free, and the Horn shark is one of 12,519 species in the app.
Or scan with your phone