Taxonomic Notes on Mexican Bats of the Genus Rhogeëssa

In this thorough study, the author delves into the taxonomy of a group of Mexican bats of the genus Rhogeëssa. Using newly arrived skins and skulls from western and eastern Mexico, the paper compares these specimens with those in major U.S. collections. The goal is to untangle a century‑old web of names and apply correct scientific labels to each form.

Three distinct taxa emerge from the analysis: a tiny island form from the Tres Marías, a larger mainland type from Veracruz, and a third, more robust variety from the Puebla plateau. Measurements of ear size, skull proportions, and dental patterns reveal differences, especially the broader mastoid region and larger ears of the plateau species. The author also tracks the provenance of type specimens, noting missing or fragmented material that has complicated earlier classifications.

By clarifying these morphological cues, the study stabilizes the names of three Mexican bat forms and shows how museum collections can resolve long‑standing taxonomic puzzles. Listeners will glimpse the meticulous detective work behind modern biodiversity research, appreciating both the bats and the careful scholarship required to name them.