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 Hemibungarus Key to Philippine species. 1a. Temporal region of head heavily pigmented with melanin; number of white dorsal body bands usually <60................................................................. 2 1b. Temporal region of head not heavily pigmented with melanin; number of white dorsal body bands usually> 60....................................... Hemibungarus gemianulis 2a. Number of ventral body scales 223–233 (males), 252–259 (females); black ventral body bands not divided by thin white bands............................. Hemibungarus calligaster 2b. Number of ventral body scales <223 (males; unknown for females); black ventral body bands divided by thin white band.................................. Hemibungarus mcclungi