Catshark egg case


The catshark is a nocturnal shark, rarely seen by divers. They lay their eggs on the ocean floor, using the coiled tendrils at the end of the egg case to attach it to fixed objects. The developing shark lives off the yolk sac but once born the shark must fend for itself.  There are 21 species of catsharks found along Western Australia’s coast, so it is hard to determine what species (or type) of catshark the egg case has come from.