Any shark of the family Heterodontidae. / Heterodontus francisci, a bullhead shark endemic to the coastal waters off the western coast of North America.

Any shark of the family Hexanchidae.

plural of cow shark

plural of sand shark

A mackerel shark of the family Odontaspididae.

Any shark of the family Hemiscylliidae

plural of bamboo shark

Any primitive fish of the order Chimaeriformes

plural of ghost shark

(fashion) Having a hemline that curves inward in a deep, symmetrical vee.