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Heterodontiformes - bullhead sharks, horn sharks, port jackson sharks

Silver Spotted SkipperThere are 9 species in this order in one family, Heterodontidae. The sharks in this order and family are 2-5 feet long and have big, broad heads; pig-like snouts; five pairs of gill slits; a stiff spine on both of their dorsal fins; and an anal fin. They have cone-shaped teeth in the front of their mouths and fat, grinding molars in the back of their mouths.

They are found in shallow water in the western and eastern Pacific Ocean and the western Indian Ocean. They eat small fish, crustaceans, and mollusks. Species include: the crested bullhead shark, the horn shark, the Japanese bullhead shark, the Mexican hornshark, the Galapagos bullhead shark, the zebra bullhead shark, and the port jackson shark.

World Status Key
Least ConcernLeast Concern Near ThreatenedNear Threatened VulnerableVulnerable EndangeredEndangered Critically EndangeredCritically Endangered extinct in the wildExtinct in Wild extinctExtinct
Status taken from ICUN Redlist. If no status is listed, there is not enough data to establish status, or there is no status data for the species.

US Status Key
Threatened in US Threatened in US Threatened in New Hampshire Threatened in NH Endangered in US Endangered in US Endangered in NH Endangered in NH Introduced Introduced
Status taken from US Fish and Wildlife and NH Fish and Game

New Hampshire Species

 

 North/Central American Species

None   California Horn Shark - Heterodontus francisci
Mexican Hornshark - Heterodontus mexicanus

Species Around the World

Location Key
Africa Africa Asia Asia Australia Australia/Oceania Europe Europe North America North/Central America South America South America New Hampshire Species NH Species
atlantic OceanAtlantic Ocean Arctic OceanArctic Ocean indian OceanIndian Ocean southern oceanMediterranean/Black Sea pacific oceanPacific Ocean

California Horn Shark - Heterodontus francisci North America pacific ocean
Crested Port Jackson Shark - Heterodontus galeatus Least Concern Australia pacific ocean
Japanese Bullhead Shark - Heterodontus japonicus Least Concern Asia pacific ocean
Mexican Hornshark - Heterodontus mexicanus North America South America pacific ocean
Oman Bullhead Shark - Heterodontus omanensis Asia indian Ocean
  Port Jackson Shark - Heterodontus portusjacksoni Least Concern Australia pacific ocean indian Ocean
Galapagos Bullhead Shark - Heterodontus quoyi South America pacific ocean
Whitespotted Bullhead Shark - Heterodontus ramalheira Africa Asia indian Ocean
Zebra Port Jackson Shark - Heterodontus zebra Least Concern Asia Australia pacific ocean indian Ocean

Additional Information

Resource Key
profile Profile Photos Photos Video Video Audio Audio

California Horn Shark - Heterodontus francisci profile Photos Video North America pacific ocean
The California horn shark is found off the coast of California and Mexico.
Source: Arkive Intended Audience: General Reading Level: Middle School Teacher Section: Yes

California Horn Shark - Heterodontus francisci profile Photos Video North America pacific ocean
California horn sharks sometimes use their strong pectoral fins to crawl along rocks.
Source: Monterey Bay Aquarium Intended Audience: General Reading Level: Middle School Teacher Section: Yes

Galapagos Bullhead Shark - Heterodontus quoyi profile Photos South America pacific ocean
the Galapagos bullhead shark is found off the coast of Ecuador and Peru.
Source: Arkive Intended Audience: General Reading Level: Middle School Teacher Section: Yes