Anaxyrus woodhousii

Sources

1. 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
2. Sanders, O. and J. C. Cross. 1964 Relationships between certain North American toads as shown by cytological study. Herpetologica 19: 248-255.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