Incilius alvarius

Sources

1. Makino, S. (1951). An atlas of the chromosome numbers in animals. Iowa State College Press, Ames.
2. Olmo, E. (1973). Quantitative variations in the nuclear DNA and phylogenesis of the Amphibia. Caryologia 26: 43-68.
3. Cole, C. J., C. H. Lowe. and J. W. Wright. 1968. Karyotypes of eight species of toads (genus Bufo) in North America. Copeia 1968: 96-100.R.D. Perkins, J.R. Gamboa, M.M. Jonika, J. Lo, A. Shum, R.H. Adams, H. Blackmon. The Amphibian Karyotype Database. Chromosome Research. https://doi.org/10.1007/s10577-019-09613-1