Afsar, MuratYakin, Batuhan Y.ÇIçek, KerimAyaz, Dinçer2025-01-272025-01-2720192337-0173https://doi.org/10.37828/EM.2019.22.17https://hdl.handle.net/20.500.12428/13296A new Ottoman viper subspecies, M. xanthina varoli n. subsp., is described from the higher altitudes of Gundogmus (Antalya). The new subspecies differs from the other M. xanthina populations by pholidosis; higher number of intercanthals and lower number of subcaudalia. Also, the whiteness between windings or spots on dorsum pattern were observed in new subspecies, similar to the southern populations. Furthermore, the spots on the ventrals became denser in the mid-body and forms darker colorization at the end of body of the males and the tail tips are yellowish-orange or light orange on both sexes. © 2020, Institute for Biodiversity and Ecology.eninfo:eu-repo/semantics/openAccessAntalya; Montivipera xanthina varoli; N. subsp.; New subspecies; Systematics; Turkey; ViperidaeArticle2221422510.37828/EM.2019.22.172-s2.0-85086846223Q2