Alabama. 

 1910 



1920 

 1922 



1924 

 Alaska. 



1898 



1928 

 Arizona. 



1875 



1875 

 1890 



1907 



1913 



1917 



1926- 



1928 

 1929b 



I93i 

 1932a 

 1932 

 1932 

 Arkansas 

 1859 



1903 

 1908 



1909 



1929a 



2. THE UNITED STATES 



Brimley, C. S. Proc. Biol. Soc. Wash. Vol. XXIII, pp. 



9-18. 



Dunn, E. R. Proc. Biol. Soc. Wash. Vol. 23) PP- 129-138. 



Loding, H. P. Geol. Survey. Alabama. Mus. Paper. No. 5. 



Ala. Mus. Nat. Hist. Univ. Alabama, pp. 16-21. 



Holt, E. G. Copeia, 1924, pp. 93-95. 



Van Denburgh, J. Proc. Am. Phil. Soc. Vol. 37, pp. 139-141. 

 Slevin, J. R. (see Brit. Columbia). 



Yarrow, H. C. In Wheeler's Rept. Geog. Explor. W. of 

 100th Meridian. V. Zoology, pp. 509-584. 

 Coues, E. In Wheeler s Rept. Geog. Explor. W. of 100th 

 Meridian. V. Zoology, pp. 585-633. 



Stejneger, L. North American Fauna, No. 3, Art. 5, pp. 

 116-118. 



Ruthven, A. G. Bull. Am. Mus. Nat. Hist. Vol. XXIII, 

 pp. 483-511. 



Van Denburgh, J. and J. R. Slevin. Proc. Cal. Acad. Sci. 

 4th Series, Vol. Ill, pp. 391-430. 

 Engelhardt, G. P. Copeia, No. 39, pp. 5-7. 

 1927 Ortenburger, A. I. and R. D. Ortenburger. Univ. 

 Okla. Bull. New Series, No. 348, Jan. 1, 1927. Proc. Okla. 

 Acad. Sci. Vol. VI, 1926, Part I, pp. 101-121. 

 Slevin, J. R. (see Brit. Columbia). 



Burt, C. E. and M. D. Burt. Jour. Wash. Acad. Sci. Vol. 

 19, pp. 428-434. 



Campbell, B. Copeia, Dec. 28, 1931, No. 4, p. 164. 

 Kellogg, R. Bull. U. S. Nat. Mus. No. 160, pp. 1-224. 

 King, F. W. Copeia, No. 4, pp. 175-177. 

 King, F. W. Copeia, No. 2, p. 99. 



Baird, S. F. Explor. and Surveys R. R. Route from Missis- 

 sippi R. to Pacific Ocean 1853-56, Vol. X, Z00L Rept. 

 No. 4, pp. 37-45- 



Stone, W. Proc. Acad. Nat. Sci. Phila. Vol. 55, pp. 538-542. 

 Strecker, J. K. Jr., Proc. Biol. Soc. Wash. Vol. XXI, pp. 

 85-90. 



Hurter, J. and J. K. Strecker, Jr. Trans. Acad. Sci. St. 

 Louis. Vol. XVIII, pp. 11-27. 



Burt, C. E. and M. D. Burt. Am. Mus. Nov. No. 381, 

 pp. 1-14. 



206 



