HETERODONTIFORMESHETERODONTIFORMES| Vietnam 1980 |
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| Zebra Bullhead Shark Heterodontus zebra (Heterodontidae) |
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| Port Jackson Shark Heterodontus portusjacksoni (Heterodontidae) (HETERODONTIFORMES) |
As for Bullhead Shark, a body is cylindrical and the head is big and is short. As for the dorsal fin, there is one thorny on the back before each dorsal fin with 2. There is an anal fin. It eats the shellfish such as turban shells with a tooth of back one forming a line like the pavement.
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