Having completed the description of an unknown and interesting snake, three specimens of which form part of the collections in the Leyden Museum, Dr. Günther’s paper in the Proceedings of the Zoological Society, Part I, 1877: »On Reptiles from Duke-of-York-Island” came into my hands and I was convinced at a glance that the snake there described and figured under the name of Erebophis asper was the same as our specimens. I have little to add to the details already published by Dr. Günther, but I am able to give comparative notes respecting the young and the adult specimens of this species, and can indicate three new localities where this snake may be sought for.