References
- Conant R, Collins JT. 1998. A field guide to reptiles & amphibians: eastern and central North America. Boston, MA: Houghton Mifflin Harcourt.
- Dong S, Kumazawa Y. 2005. Complete mitochondrial DNA sequences of six snakes: phylogenetic relationships and molecular evolution of genomic features. J Mol Evol. 61:12–22.
- He M, Feng J, Zhao E. 2010. The complete mitochondrial genome of the Sichuan hot-spring keel-back (Thermophis zhaoermii; Serpentes: Colubridae) and a mitogenomic phylogeny of the snakes. Mitochondrial DNA. 21:8–18.
- Kapfer JM, Coggins JR, Hay R. 2008. Estimates of population size, measurements of sex ratios, and reported mortality rates for bullsnakes (Pituophis catenifer sayi) at a site in the upper midwestern United States. J Herpetol. 42:265–269.
- Liu P, Zhao WG. 2015. The complete mitochondrial genome of the Amur rat-snake Elaphe schrenckii (Squamata: Colubridae). Mitochondrial DNA. 27:2529–2530.
- Tamura K, Stecher G, Peterson D, Filipski A, Kumar S. 2013. MEGA6: Molecular Evolutionary Genetics Analysis version 6.0. Molecular Biology and Evolution. 30:2725–2729.
- Xu C, Mu Y, Kong Q, Xie G, Guo Z, Zhao S. 2015. Sequencing and analysis of the complete mitochondrial genome of Elaphe davidi (Squamata: Colubridae). Mitochondrial DNA. 27:2383–2384.
- Yan L, Geng ZZ, Yan P, Wu XB. 2014. The complete mitochondrial genome of Elaphe bimaculata (Reptilia, Serpentes, Colubridae). Mitochondrial DNA. 27:1285–1286.