Alex Mustard / Leafy seadragon (Phycodurus eques). Wool Bay Jetty, Edithburgh, Yorke Peninsula, South Australia.

Alex Mustard / A parasitic isopod attached to a Leafy Seadragon (Phycodurus eques). This species of isopod has an ornately shaped carapace to disguise it on the seadragon. Wool Bay Jetty, Edithburgh, Yorke Peninsula...

Alex Mustard / A male Leafy Seadragon (Phycodurus eques) carries a new batch of eggs on his tail. Wool Bay Jetty, Edithburgh, Yorke Peninsula, South Australia, November.

Alex Mustard / A batch of Leafy Seadragon (Phycodurus eques) eggs on the tail of a male. Wool Bay Jetty, Edithburgh, Yorke Peninsular, South Australia, November.

Alex Mustard / A male Leafy Seadragon (Phycodurus eques) swimming. Wool Bay Jetty, Edithburgh, Yorke Peninsular, South Australia, November.

Alex Mustard / A portrait of a Leafy Seadragon (Phycodurus eques). Wool Bay Jetty, Edithburgh, Yorke Peninsular, South Australia, November.

Alex Mustard / A Leafy Seadragon (Phycodurus eques) swims over a seagrass bed. Wool Bay Jetty, Edithburgh, Yorke Peninsular, South Australia, November.

Norbert Wu / Leafy Sea Dragon (Phycodurus eques) spectacular example of camouflage, for both protection and ambush feeding endemic to South Australia

Fred Bavendam / Leafy Sea Dragon (Phycodurus eques) eggs, freshly laid on the tail of a male, Kangaroo Island, South Australia

Fred Bavendam / Leafy Sea Dragon (Phycodurus eques) male carrying eggs that a female has recently deposited onto his tail, Kangaroo Island, South Australia

Peter Scoones / Leafy seadragon male {Phycodurus eques} Australia

Alex Mustard / A Leafy Seadragon (Phycodurus eques) photographed against open water. Wool Bay Jetty, Edithburgh, Yorke Peninsular, South Australia, December.