Genera of Leptodactylid Frogs in México

This concise monograph surveys the leptodactylid frogs that inhabit Mexico, revisiting a classic 1948 checklist and incorporating three decades of taxonomic research. The author, who began his fieldwork in the early 1960s, explains why the traditional six‑genus framework has become problematic, noting numerous new species, synonymizations, and shifting definitions. He argues that a careful re‑examination is needed before larger revisions of related South American groups are attempted.

Drawing on detailed examinations of inguinal glands, digit morphology, and skeletal traits, the work proposes a clear four‑genus arrangement that separates Eleutherodactylus, Syrrhophus, Tomodactylus, and a newly recognized genus. Illustrated with photographs and diagrams, the analysis clarifies long‑standing ambiguities and sets the stage for a more coherent phylogenetic and biogeographic picture of Middle American leptodactylids. Listeners will come away with a solid grasp of how subtle anatomical clues reshape our understanding of these diverse frogs.