The information will be used to determine the distribution, habitat requirements and research and management priorities for these little-known species. Anyone who visits the beach in Australia can get involved. Along with seahorses, pipehorses and pipefish these spectacular fish belong to the Family Syngnathidae. Syngnathids are long, slender fish with bony plates surrounding their bodies. The Latin name 'syngnathid' refers to their jaws, which are united into a 'tube-snouted' mouth.
Adults are usually reddish with yellow spots and purple-blue bars.
Small leaf-like appendages occur singularly or in pairs along the body. A few short spines also occur along the body. It is quite easy to determine the gender of a weedy seadragon. A male weedy has a shallow body width and is generally darker in colour than the female. A male weedy seadragon.