"Neotropical Bats from Western México" by Sydney Anderson is a scientific publication written in the mid-20th century. This book explores the distribution, variation, and reproductive data of various tropical fruit-eating bats, particularly focusing on the genus "Artibeus", found in western coastal regions of Mexico. It serves as a contribution to the understanding of bat species in this neotropical region, compiling significant findings from fieldwork supported by multiple institutions. The content of the book provides detailed information on several species of bats, including "Artibeus hirsutus", "Artibeus jamaicensis jamaicensis", and others, delineating their range extensions and physical characteristics over the region of western Mexico. Anderson presents a thorough examination of specimens collected during various expeditions, detailing measurements, sex differences, and reproductive data. The findings enhance the existing knowledge of bat distribution in Mexico, suggesting possible reconsiderations of previously established geographical limits for these species. Overall, the publication is a crucial reference for researchers and enthusiasts interested in the biodiversity and ecological significance of bats in neotropical habitats. (This is an automatically generated summary.)