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These species are blunt headed, bulky sharks with small bumps over the eyes. They have both biting and crushing teeth -unusual in sharks -two dorsal fins with spines, one anal fin and five gill slits. These species are considered egglayers.
FAMILY Heterodontidae| Heterodontus francisci | Horned Shark |
| Heterodontus galeatus | Crested Horn Shark |
| Heterodontus japanicus | Japanese Horn Shark |
| Heterodontus mexicanus | Mexican Horn Shark |
| Heterodontus portusjacksoni | Port Jackson Shark |
| Heterodontus quoyi | Galapagos Bullhead Shark |
| Heterodontus ramalheira | Mazambique Bullhead Shark |
| Heterodontus zebra | Zebra Bullhead Shark |
