In this paper, we report six additional species for the list of snakes from Thanh Hoa province based on the new reptile collection from Xuan Lien Nature Reserve. We report six new records of snakes from Thanh Hoa province based on newly collected specimens from Xuan Lien Nature Reserve, comprising three species of Colubridae, two species of Natricidae and one species of Elapidae. | TAP SINH HOC 2016, 38(3): NewCHI records and an updated list of324-332 snakes DOI: NEW PROVINCIAL RECORDS AND AN UPDATED LIST OF SNAKES (Squamata: Serpentes) FROM XUAN LIEN NATURE RESERVE, THANH HOA PROVINCE, VIETNAM Nguyen Van Tan, Pham The Cuong, Nguyen Quang Truong* Institute of Ecology and Biological Resources, VAST ABSTRACT: We report six new records of snakes from Thanh Hoa province based on newly collected specimens from Xuan Lien Nature Reserve, comprising three species of Colubridae (Lycodon futsingensis, L. meridionalis and Oreocryptophis porphyraceus), two species of Natricidae (Hebius boulengeri and Parahelicops annamensis), and one species of Elapidae (Bungarus slowinskii). In addition, an updated list of 38 snake species from Xuan Lien Nature Reserve is also provided. The snake fauna of Xuan Lien Nature Reserve contains a number of species of conservation concern including six species listed in the Governmental Decree No. 32/2006/ND-CP (2006), eight species listed in the Vietnam Red Data Book (2007), and four species listed in the IUCN Red List (2016). Keywords: Distribution, snakes, species list, Xuan Lien Nature Reserve. Citation: Nguyen Van Tan, Pham The Cuong, Nguyen Quang Truong, 2016. New provincial records and an updated list of snakes (Squamata: Serpentes) from Xuan Lien Nature Reserve, Thanh Hoa province, Vietnam. Tap chi Sinh hoc, 38(3): 324-332. DOI: . *Corresponding author: nqt2@. INTRODUCTION The Xuan Lien Nature Reserve is located in Thuong Xuan district, Thanh Hoa province, Vietnam, covering an area of 27,668 ha of montane evergreen forest [18]. Although this protected area was established in 2000, the herpetofauna of Xuan Lien Nature Reserve is still poorly studied. Le et al. (1999) [10] provided the first list of 16 snake species from this reserve. Le & Pham (2009) [9] reported a total of 28 species of snakes from Xuan Lien Nature Reserve. Pham et al. (2012) .