Urban Southern California is a Center of Diversification for Salamander Lineages
Overview of the genus Batrachoseps. California map (shaded by elevation) shows ranges of species in the attenuatus, nigriventris and pacificus species groups within the state; inset shows the species tree inferred from five nuclear genes. Asterisk indicates the Riverbank population of B. attenuatus, which may have been introduced. The map and tree are modified from Jockusch, Martínez-Solano & Timpe (2015).
Photo by: https://peerj.com/articles/9599.pdf