The scientific career of the zoologist José Yepes: collections, travels and zoogeography in the decades of 1930s and 1940s.For almost fifteen years, José Yepes organized and increased the collection of mammals of the Argentine Museum of natural Sciences of Buenos Aires.this zoologist was mainly dedicated to the study of the argentine xenarthrans and rodents as well as to the promotion of zoogeography.He made observations and collections in several regions of western Argentina, predominantly in mountainous and hilly