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Phycodurus and Phyllopteryx

Seadragons are a unique and fascinating group of fish that belong to the Syngnathidae family, along with seahorses and pipefish. Seadragons are found along the southern and western coasts of Australia and are known for their unique, leaf-like appendages that help them camouflage among seaweed. They are slow swimmers and feed primarily on small crustaceans. Some species of seadragons are known to be monogamous and the male carries the eggs until they hatch. They are considered endangered due to habitat loss and overfishing.
Common (Weedy) Seadragon Graphic
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Weedy(Common) Seadragon Clickable
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Leafy Seadragon Clickable
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Leafy Seadragon Graphic
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In terms of size and biology, seadragons are generally smaller than seahorses, with some species reaching only about 25 cm in length. They have elongated, slender bodies, and their leaf-like appendages provide them with excellent camouflage in their aquatic environment. They also have a long, snout-like mouth that they use to suck up their small prey.

Seadragons are found in the waters of southern and western Australia, where they inhabit shallow, coastal waters and seagrass beds. They can be found along the southern coast of Western Australia, as well as in areas such as Victoria, South Australia, and New South Wales.

The diet of seadragons consists primarily of small crustaceans such as mysids and amphipods. They use their long, snout-like mouth to suck up their prey, and they have specialized gills that allow them to filter out small particles from the water.

Seadragons are slow-moving and primarily feed on small crustaceans such as mysids and plankton. They use their leaf-like appendages for camouflage and to blend in with their surroundings. Seadragons are also known to use their tail to anchor themselves to seaweed and other underwater plants. They are not known to be aggressive and tend to be solitary creatures.

There are two known species of seadragon: the leafy seadragon (Phycodurus eques) and the weedy seadragon (Phyllopteryx taeniolatus). Both species are members of the Hippocampinae subfamily within the Syngnathidae family. 

Seadragons are closely related to seahorses and pipefish, but are distinguished by their unique appearance and leaf-like appendages.