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The bullhead sharks are members of the genus Heterodontus, the only members of the family Heterodontidae and only living members of the order Heterodontiformes. All are relatively small, with the largest species reaching just 1.65 metres (5.5 ft) in maximum length. They are bottom feeders in tropical and subtropical waters.
Sharks portal; The horn shark (Heterodontus francisci) is a species of bullhead shark, in the family Heterodontidae.It is endemic to the coastal waters off the western coast of North America, from California to the Gulf of California.
Heterodontiformes is an order of sharks in the superorder Galeomorphii.It includes the bullhead sharks (genus Heterodontus), and several extinct genera.The earliest known members of the group are from the Early Jurassic (), around 175 million years ago.
The zebra bullhead shark (Heterodontus zebra) is a bullhead shark of the family Heterodontidae found in the central Indo-Pacific between latitudes 40°N and 20°S, from Japan and Korea to Australia. [ 1 ] [ 2 ] It is typically found at relatively shallow depths down to 50 m (160 ft), but off Western Australia , it occurs between 150 and 200 m ...
The Mexican hornshark (Heterodontus mexicanus) is a bullhead shark of the family Heterodontidae. This shark is grey-brown in color, with black spots scattered on the fins and body. It has a cylindrical trunk, conical head, and small spiracles behind the eyes. The snout of the Mexican hornshark is very round and blunt.
The Port Jackson shark is a nocturnal species which peaks in activity during the late evening hours before midnight and decreases in activity before sunrise. [2] A study showed that captive and wild individuals displayed similar movement patterns and the sharks' movements were affected by time of day, sex, and sex-specific migrational behaviour.
The Japanese bullhead shark (Heterodontus japonicus) is a species of bullhead shark in the family Heterodontidae found in the northwestern Pacific Ocean off the coasts of Japan, Korea, and China. This benthic shark occurs at depths of 6–37 m (20–121 ft) over rocky bottoms or kelp beds.
The whitespotted bullhead shark, Heterodontus ramalheira, is a bullhead shark of the family Heterodontidae found in the western and northern Indian Ocean between latitudes 22°N to 26°S, at depths between 40 and 305 m. It can grow up to a length of 83 cm. Little is known about the whitespotted bullhead shark.