Synopsis of the Snakes of the Philippines A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature Author Leviton, Alan E. Herpetology Division, Institute of Biodiversity Science & Sustainibility, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, California 94118 & Research Associate, Division of Amphibians & Reptiles, Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA. aleviton@calacademy.org Author Siler, Cameron D. Department of Biology and Sam Noble Museum, University of Oklahoma, 2401 Chautauqua Ave., Norman, OK 73072 - 7029, USA & Zoology Division, National Museum of the Philippines, Rizal Park, Burgos Ave., Ermita 1000, Manila, Philippines. camsiler@ou.edu Author Weinell, Jeffrey L. Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045 jweine2@gmail.com Author Brown, Rafe M. Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045 & Zoology Division, National Museum of the Philippines, Rizal Park, Burgos Ave., Ermita 1000, Manila, Philippines. rafe@ku.edu text Proceedings of the California Academy of Sciences 2018 Oxford, England 2018-03-29 64 14 399 568 http://dx.doi.org/10.5281/zenodo.11512589 journal article 299690 10.5281/zenodo.11512589 d7a23684-9222-422b-868a-6c8712a4fd05 0068-547X 11512589 Trimeresurus ( Parias ) mcgregori ( Taylor, 1919 ) Photo figure 110–113 McGregor’s Philippine Pitviper Trimeresurus mcgregori Taylor, 1919:110 ; 1922a:284 .— Gumprecht, Tillack, Orlov, Captain, and Ryabov, 2004:35, 18 col. photos (pp. 246–250). Trimeresurus flavomaculatus mcgregori , Leviton, 1964c:261 .— Toriba, 1993a:98 .— David and Ineich, 1999:284. Parias mcgregori , Oliveros, Ota, Crombie, & Brown 2011:6 . Trimeresurus ( Parias ) mcgregori , Leviton, Brown, and Siler, 2014:517 , figs. 14 , 51. TYPE LOCALITY AND TYPE SPECIMEN ( S ) .— Batan Id. , Batanes Group , off northern Luzon Id. , Philippines . Holotype : PNM 748 (destroyed during WWII ); Neotype : CAS 60525 , designated by Leviton (1964c:261) . PHILIPPINE DISTRIBUTION ( ENDEMIC ) ( Map 36A [p. 147]).— Babuyan Ids. (Calayan, Camiguin Norte), Batan Id. CONSERVATION STATUS [IUCN] .— Data Deficient [2016] ver. 3.1.