80 



Trans. Acad. Sci. of St. Louis. 



Choropkilus tr'seriatus. ...April 2, 1910. 

 Wied. 



April 12, 1896. 



May 20, 1897. 



Acris g. crepitans Baird. .April 10 to 



May 30. 

 Engystoma texense 



Girard April 15 to 



June 1. 



Bufo americanus 



Le Conte March 19 to 



May 30. 

 Bufo valliceps Wieg April 10 to 



May 30. 



Bufo debilis Girard April 30, 1900. 



May 12, 1906. 



May 20, 1897. 

 Bufo compactilis Wieg. . . May 1 to 



May 30. 



Bufo punctatus B. & G. .May 12, 1907. 



April 15, 1909. 



Water-filled ditches Males 

 on mesquite flats. only. 



Grassy marsh two miles 

 east of city. 



Temporary prairie Spring 



ponds breeding in rains 



company with Bufo later 

 debilis Gir. and En- thau 

 gystoma texense Girard. usual. 



Ponds and small 

 streams. 



Prairie ponds, pools in 

 damp gulches, road- 

 side ditches. 



Brazos river, Waco 

 creek, ponds. 



Pools in damp gulches, 

 small creeks. The 

 males are usually 

 heard a night or two 

 before the females 

 seek the breeding 

 places. The former 

 greatly exceed the 

 latter in numbers. 



Prairie ponds. 



Roadside ditches along 

 mesquite covered flats. 



Prairie ponds. 



Temporary ponds and 

 ditches. Breeding 

 habits resemble those 

 of Scaphiopus to a 

 considerable extent. 

 Metamorphosis of 

 tadpole unusually 

 rapid. 



One specimen captured 

 in a temporary pond 

 but may not have 

 been breeding. 



Near Glen Rose, Som- 

 ervell Co., Texas, I 

 found this species 

 breeding in water- 

 filled hollows in a 

 rocky gulch. 



