Comments on the Taxonomy and Geographic Distribution of Some North American Marsupials, Insectivores and Carnivores is a scientific paper authored by E. Raymond Hall and Keith R. Kelson that focuses on the classification and distribution of several groups of mammals in North America, specifically marsupials, insectivores, and carnivores.The paper provides a detailed review of the taxonomy of various species within these groups, discussing their characteristics, evolutionary relationships, and the current state of knowledge regarding their classification. Hall and Kelson draw upon previous studies and museum collections to present updated information on the taxonomy, including any proposed revisions or corrections to existing classifications.