Bull. U. S. B. F., 1927, Pt. II. (Doc. 1021.) 



Fig. 25. — Male of 3j age group, 33 centimeters long, September 12, 1924 

 Fig. 26. — Male of 4 4 age group, 34 centimeters long, September 9, 1924 

 Fig. 27. — Male of 5s age group, 33 centimeters long, September 9, 1924 



