Web Directory

» Bullhead Shark
   Photograph of two Port Jackson sharks (Heterodontus portusjacksoni) and information from Wikipedia on the anatomical features that distinguish members of the order Heterodontiformes.
   http://en.wikipedia.org/wiki/Bullhead_shark

» Crested Bullhead Shark
   Description and photograph from Wikipedia of this species from the western Pacific.
   http://en.wikipedia.org/wiki/Heterodontus_galeatus

» Horn Shark
   Biological profile of Heterodontus francisci with photographs and information on its taxonomy, distribution, distinctive features, reproduction, interaction with humans and status
   http://www.flmnh.ufl.edu/fish/Gallery/Descript/HornShark/HornShark.html