PREFACE TO THE SECOND EDITION 



The main purpose of the revision of this Manual has been to reflect 

 in it the numerous changes in the nomenclature of the Vertebrate 

 animals of the United States which have been made in the past few 

 years, and to define more precisely their known ranges of distribution. 

 In the accomplishment of this purpose the author has freely utilized 

 all the published sources of information at his command. For the 

 group of Fishes he has followed in the main the Check List of the Fishes 

 and Fishlike Vertebrates of North and Middle America by Jordan, 

 Evermann and Clark (1930), and for the group of Mammals Anthony's 

 Field Book of North American Mammals (1928). In both these groups 

 Jordan's Manual of the Vertebrate Animals of the Northeastern United 

 States, Thirteenth Edition (1929) has often been followed, the section on 

 Fishes in this work having been revised by Dr. C. L. Hubbs and that 

 on Mammals by Dr. H. H. T. Jackson. 



Dr. Emmett Reid Dunn, Professor of Biology in Haverford College 

 and the author's colleague, has thoroughly revised the sections on 

 Amphibians and Reptiles, and the author is under a great obligation 

 to him for this valuable service. The author is also under obligation 

 to Joshua L. Baily Jr., San Diego, California, for reading and correcting 



the proof. 



Ha\terford College, 

 Haverford, Pa. 



