Amphibians and reptiles of C. E. Miller Ranch and the Sierra Vieja, Chihuahuan Desert... 97 Amphibians and reptiles of C. E. Miller Ranch and the Sierra Vieja, Chihuahuan Desert, Texas, USA Drew R. Davis 1 , Travis J. LaDuc 2 1 Department of Biology, University of South Dakota, 414 East Clark Street, Vermillion, South Dakota 57069, USA 2 Biodiversity Collections, Te University of Texas at Austin, 10100 Burnet Road, PRC 176–R4000, Austin, Texas 78758, USA Corresponding author: Drew R. Davis (drew.davis@usd.edu) Academic editor: A. Herrel  |  Received 25 November 2017  |  Accepted 27 January 2018  |  Published 6 February 2018 http://zoobank.org/7D4F3094-29E1-448B-852F-B4BA407CFAEA Citation: Davis DR, LaDuc TJ (2018) Amphibians and reptiles of C. E. Miller Ranch and the Sierra Vieja, Chihuahuan Desert, Texas, USA. ZooKeys 735: 97–130. https://doi.org/10.3897/zookeys.735.22200 Abstract We report the occurrence of 50 species of amphibians and reptiles recently collected on C. E. Miller Ranch and the Sierra Vieja in the Chihuahuan Desert of Texas, USA and describe their perceived distribu- tion and abundance across various habitat associations of the region. Our recent surveys follow intense, historic sampling of amphibians and reptiles from this region in 1948. Of the 50 species detected in recent surveys, six were not collected in 1948 and an additional three species documented in 1948 have yet to be detected in a 14-year period of recent surveys. Combining data from both historic and recent surveys, a total of 53 species of amphibians and reptiles are known from the ranch (11 amphibians, 42 reptiles). Land stewardship and conservation practices have likely contributed to the persistence of the majority of these species through time. Additionally, we discuss the status of amphibians and reptiles not collected during recent surveys and comment on potential species that have not yet been detected. Keywords Amphibia, Checklist, Herpetological diversity, Land stewardship, Long-term survey, Reptilia, Species composition, Voucher collections ZooKeys 735: 97–130 (2018) doi: 10.3897/zookeys.735.22200 http://zookeys.pensoft.net Copyright Drew R. Davis,Travis J. LaDuc. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CHECKLIST Launched to accelerate biodiversity research A peer-reviewed open-access journal