Mccosker, J. E., W.-L. Chen, and H.-M. Chen. “Comments on the Snake-Eel Genus Xyrias (Anguilliformes: Ophichthidae) With the Description of a New Species”. Zootaxa, vol. 2289, no. 1, Nov. 2009, pp. 61–67, doi:10.11646/zootaxa.2289.1.6.