Illustrated Key to the Snakes of the Philippines Author Weinell, Jeffrey L. Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045; jweine2@gmail.com Author Hooper, Errol Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045; Author Leviton, Alan E. Herpetology Division, Institute of Biodiversity Science & Sustainability, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, California 94118. * Corresponding author; Email: jweine 2 @ gmail. com Author Brown, Rafe M. Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045; text Proceedings of the California Academy of Sciences 2019 2019-09-30 66 1 1 49 journal article 299708 10.5281/zenodo.11512680 ccd739a4-10c3-4700-b27e-459bd82f1676 0068-547X 11512680 Liopeltis Key to Philippine species. 1a. Nasal scales fused to internasal scales anterior to rostral ( Fig. 39 ); dorsal surface of body with four brown longitudinal stripes.................................. Liopeltis philippinus 1b. Nasal scales not fused to internasal scales; dorsal surface of body uniformly colored above, without longitudinal stripes........................................ Liopeltis tricolor