International Commission on Zoological Nomenclature. 1956. Opinion 385. Determination under the Plenary Powers of the method to be adopted in interpreting the nominal species “Coluber sirtalis” Linnaeus, 1758, the common garter snake of the eastern United States, and approval of the neotype designated for the foregoing species and of that designated for the ribbon snake of North America. pp. 191–230, 2 pls. InHemming, F. (Ed.). Opinions and Declarations of the International Commission on Zoological Nomenclature. Volume 12. Part 6. International Trust for Zoological Nomenclature: London. BHL