Parahydrophis mertoni is blackish-olive with about 46 yellow rings on the body and ten on the tail. The head shields are spotted with yellow, except for the rostral and labials which are black.[6]
^ abAustralian Biological Resources Study (26 August 2013). "Species Parahydrophis mertoni (Roux, 1910)". Australian Faunal Directory. Canberra, Australian Capital Territory: Department of the Environment, Water, Heritage and the Arts, Australian Government. Retrieved 6 October 2017.
^de Rooij N (1917). The Reptiles of the Indo-Australian Archipelago. II. Ophidia. Leiden: E.J. Brill. xiv + 334 pp., 117 Figures. (Hydrophis mertoni, new combination, p. 233).
Further reading
Cogger HG (2014). Reptiles and Amphibians of Australia, Seventh Edition. Clayton, Victoria, Australia: CSIRO Publishing. xxx + 1,033 pp. ISBN978-0643100350.
Roux J (1910). "Reptilien und Amphibien der Aru- und Kei-Inseln ". Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft33: 211–247. (Distira mertoni, new species, p. 222 + Plate 13, figures 4 & 4a). (in German).