"Taxonomic Notes on Mexican Bats of the Genus Rhogeëssa" by E. Raymond Hall is a scientific publication written in the early 1950s. This work focuses on the classification and identification of various species of bats within the genus Rhogeëssa found in Mexico. It is a scholarly examination that seeks to clarify taxonomic discrepancies and contribute to the understanding of these specific bat species. In this publication, Hall examines several specimens of Rhogeëssa bats collected from various locations across Mexico, including Sonora, Nayarit, and Veracruz. He discusses three named species: "Rhogeëssa parvula", "Rhogeëssa tumida", and "Rhogeëssa gracilis", detailing their morphological differences and geographic ranges. The study involves comparing new specimens with existing collections to assess their classification and possibly resolve any naming errors or misidentifications. Hall argues for a comprehensive understanding of the interrelationships between these species and suggests that geographical variations may lead to the conclusion that they should be considered subspecies of a single species rather than distinct entities. Overall, the work is an important contribution to the field of mammalogy and the understanding of Mexican bat diversity. (This is an automatically generated summary.)