A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope

This volume offers a thorough re‑examination of the Leptodactylid frog genus Syrrhophus, a group whose classification has been tangled for more than seven decades. By tracing the genus from its original description in central Texas through its expansion across Central and South America, the author untangles a web of misassigned species and clarifies the defining characteristics of each lineage. Detailed morphological comparisons—especially of palmar tubercles and other skeletal features—form the backbone of the revision.

The work situates the genus within its historical taxonomic framework, recounting earlier attempts by Cope, Taylor, and others to delineate its boundaries. It presents comprehensive tables that list nineteen previously mis‑placed species, indicating which belong elsewhere and proposing new combinations where appropriate. The discussion of eastern and western species complexes highlights subtle but consistent differences that have long been overlooked.

Accompanied by twenty‑two carefully drawn figures, the monograph provides clear visual references for field researchers and students alike. Its systematic approach not only refines species limits but also sets a solid foundation for future ecological and evolutionary studies of these enigmatic frogs.