The book "A new intestinal mouse (genus Perognathus) from Kansas" by I. Lendell Cockrum is a study devoted to a review of the widespread possibilities of classification and biology of species of mouse-like rodents of the genus Perognathus found in the state of Kansas, USA. The author examines in detail the physical characteristics, customs, environment and behavior of intestinal mice in view of their connection with the local environment and other species of animals. The book contains high-quality visual materials to help readers better understand the variety of Perognathus and their life cycle. This is a valuable additional resource for biology students, ecologists, and anyone interested in the detailed study of murine rodents.