42 CALIFORNIA ACADEMY OF SCIENCES f Proc. 4th Ser. 



Eighty-three specimens were collected near Boise, Ada County, 

 (Nos. 41453-41510) on August 23 and 24, 1916, and (Nos. 

 45451 to 45475) between May 23 and September 2, 1918. 



8. Rana pipiens Schreber 



One hundred and seventy-four specimens of this frog are 

 included in our Idaho collections. Forty-six of these (Nos. 

 41307-41352) were taken at Fort Hall, Bingham County, Au- 

 gust 12 to 16, 1916. One (No. 47742) was caught by Mr. 

 Brighton C. Cain at Bear Lake, Bear Lake County, July 22, 

 1920, and another (No. 47743) at Deep Lakes, Bloomington 

 Canyon, Bear Lake County, July 29, 1920. All the other spec- 

 imens were collected near Boise, Ada County, (Nos. 41388- 

 41452 and 41511-41520) in August and September, 1916, and 

 (Nos. 45476-45526) from July 18 to September 2, 1918. 



9. Rana pretiosa Baird & Girard 



One hundred and twenty-five frogs of this species were 

 secured in Idaho, as follows : 



Twenty-eight (Nos. 41542-41570) at Payette Lake, Boise 

 County, September 5 to 9, 1916. 



Fifty-six (Nos. 41584-41639) at Guyer Hot Springs, Blaine 

 County, September 18 and 19, 1916. 



Forty-one (Nos. 45779-45819) at McCall, Boise County, 

 August 6 to 11, 1918. 



11. Crotaphytus wislizenii Baird & Girard 



Two (Nos. 41275-41276) were taken at Fort Hall, Bingham 

 County, August 11, 1916. Seventeen were collected near 

 Boise, Ada County, as follows: three (Nos. 45421-45423) 

 from May 22 to August 16, 1914; six (Nos. 41366-41371) 

 from August 25 to 29, 1916; three (Nos. 45418-45420) Au- 

 gust 21 to 26, 1916; four (Nos. 45424-45427) June 24, 1917; 

 and one (No. 45417) July 15, 1918. 



The femoral pores in nineteen specimens vary from sixteen 

 to twenty; being 16 once, 17 six times, 18 eleven times, 19 

 thirteen times, and 20 seven times. The average of the thirty- 

 eight thighs is 18.5. 



