The object of this bulletin is twofold: To call attention to the richness of the United States National Museum North American land mammals, and to furnish a sum

The object of this bulletin is twofold: To call attention to the richness of the United States National Museum North American land mammals, and to furnish a sum

The North American recent mammals in the United States National Museum number about 166,000 specimens, including 1,435 types. More than three-fourths of this ma