Overview

Horn and bullhead sharks are compact reef-bottom specialists with eyebrow-like ridges and dorsal spines. In a field guide, they read more like armored shell-crushers than sleek open-water hunters. The family is distinctive for a blunt head, strong ridges over the eyes, stout crushing teeth in the rear of the jaws, and a spine at the front of each dorsal fin. Bullhead and horn sharks live mainly in the Pacific and eastern Indian oceans, with species occupying temperate to tropical coastal zones.

They are benthic sharks of rocky reefs, kelp-influenced coasts, sandy patches, and crevice-rich hard bottom, usually in shallow to moderate depths.

Added from the World Register of Marine Species (WoRMS).

Why it matters: Their egg cases are shaped like little spirals so they can be twisted into cracks for protection.

Common nameMozambique bullhead shark
Scientific nameHeterodontus ramalheira
FamilyHeterodontidae
OrderHeterodontiformes
Max length0.8 m
Depth range0 to 0 meters
RegionMozambique, Mozambican EEZ, South Africa
DietData not available in this offline release.
HabitatMarine waters (habitat data not available locally).
Why it stands outFamily: Heterodontidae

What this shark is

The family is distinctive for a blunt head, strong ridges over the eyes, stout crushing teeth in the rear of the jaws, and a spine at the front of each dorsal fin.

Where it lives

Bullhead and horn sharks live mainly in the Pacific and eastern Indian oceans, with species occupying temperate to tropical coastal zones.

They are benthic sharks of rocky reefs, kelp-influenced coasts, sandy patches, and crevice-rich hard bottom, usually in shallow to moderate depths.

How it differs from similar sharks

Family: Heterodontidae

Compare it against Galapagos bullhead shark, Heterodontus Marshallae, and Heterodontus Omanensis.

Why it is notable

These sharks pose little danger to people, though the dorsal spines and bite can defend them if handled.

Species-level taxonomy was verified from Sharkipedia's current species list and taxonomy workbook. In this pass, the narrative fields are cautious family-level placeholders synthesized from broad shark references, chiefly the FAO Sharks of the World catalogue, because a stronger multi-source species-level synthesis was not assembled here without risking invented detail. Replace this with a direct species-level synthesis before publication in the app.

Related shark pages

These links are meant to help readers continue through related species, not force extra clicks.

Zebra bullhead shark reference photograph showing the stout head and banded juvenile-style pattern; not to scale.
Heterodontus zebra

barred bull-head shark

Common name: Zebra bullhead shark

Shark species in Heterodontidae.

1.2 m max