Uetz, P., Freed, P, Aguilar, R., Reyes, F. & Hošek, J. (eds.) (2020) The Reptile Database, http://www.reptile-database.org, accessed May 2020 (or later, but not later than the next version, which was released in August 2020).
For details see http://www.reptile-database.org
For most recent releases, please contact Peter Uetz