California horn shark  (Heterodontus francisci)

Close up of the egg case of a California horn shark

© Mark Conlin/V&W / imagequestmarine.com

Egg case of a California horn shark

© Georgette Douwma / naturepl.com

California horn shark hatching

© Howard Hall / www.osfimages.com

Close up of the head of a California horn shark

© Bruce Watkins/AA / www.osfimages.com

Close up of the enlarged dorsal spine of a California horn shark

© Ken Lucas / www.ardea.com

Close up of a California horn shark

© Randy Morse / Animals Animals

California horn shark swimming

© Andy Murch / Elasmodiver.com

California horn shark

© Steve Earley / Animals Animals

View from above of a California horn shark

© Andy Murch / Elasmodiver.com

California horn shark on the sea bed

© Jeff Rotman / naturepl.com

Close up of the mouth of a California horn shark

© Jeff Rotman / naturepl.com

Close up of the eye of a California horn shark

© Jeff Rotman / naturepl.com

Jaws of a California horn shark, showing specialised teeth

© Doug Perrine / naturepl.com

Dorsal spine, or horn, of a California horn shark

© Doug Perrine / naturepl.com