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Meet Ruby – WA’s seadragon discovery that’s been 100 years in the making

Western Australian Museum Media Release, Meet Ruby – WA’s seadragon discovery that’s been 100 years in the making, February 2015


Researchers from the Western Australian Museum and Scripps Institution of Oceanography in the United States have announced the discovery of a new species of seadragon found off the WA coast.

Known as the Ruby Seadragon for its unusual bright red colouring, Phyllopteryx dewysea is only the third species of seadragon ever recorded in the world.

The species was identified and described by the WA Museum’s Dr Nerida Wilson and her colleagues, using DNA from a specimen trawled off Esperance on WA’s south coast in 2007 and linking it to other specimens with morphology, including one that washed up on metropolitan Cottesloe beach back in 1919. The Cottesloe specimen has resided in the WA Museum’s collection for nearly 100 years and was critical in providing the information necessary to prove the discovery of a new species.

Two additional specimens also collected off Perth were found in CSIRO collections and, along with the 2007 holotype and the 1919 paratype, provided the data needed to describe the new species. The other two known species are the Leafy Seadragon (Phycodurus eques) and the Common Seadragon (Phyllopteryx taeniolatus), both of which are found along Australia’s southern coast.

The 2007 Ruby seadragon holotype was collected at the Recherche Archipelago as part of a collaborative research project (Marine Futures) between the WA Museum, The University of Western Australia, the Department of Fisheries and other agencies.

The Ruby Seadragon is an amazing new discovery in Western Australian waters and a clear demonstration of the value of Museum collections over time, to inform current and future scientific research.

You can read the full scientific article here.

Pic caption:
Ruby Seadragon (Phyllopteryx dewysea) holotype held in the WA Museum’s Aquatic Zoology collection

Council of Australasian Museum Directors, c/o Ms Daryl Karp, Museum of Australian Democracy at Old Parliament House PO Box 3934 Manuka, Australian Capital Territory 2603 Australia, © CAMD 2021
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