The distribution of Bufo signifer. Data from Mulcahy, D.; Williams, T.; Mendelson, III, J; and Sites, J. (2008) "Phylogenetic Relationships Among Mesoamerican Bufonids." Poster presented at the 2009 Joint Meeting of the American Society of Ichthyologists and Herpetologists. Abstract available here, p. 58.
BlankMap-World6.svg
BlankMap-World6.svg: Canuckguy (talk) and many others (see File history)
derivative work: Ninjatacoshell (talk)