Bullfrog. Bloody Nouns. Bully. Jug-o'-Rum 



Plate LXV. 1,4, 5. Males 

 (xf). 2. Female. 3. Tadpole 

 (Xf). 6. Eggs (xi). 



Rana catesbeiana Shaw. 



Range: Canada to Mexico 

 east of the Rockies. Also 

 introduced into western 

 United States. 



Habitat: Strictly aquatic, 

 these frogs seem to prefer 

 mill ponds, hydraulic lakes, 

 reservoirs and kindred bodies 

 of water. 



Size: Adults, 3 2/5-8 

 inches. (Males, 85-180 mm. 

 Females, 89-184, possibly 200 

 mm.). The species seldom 

 breeds before it reaches 4 

 inches (100 mm.). 



General appearance: The 

 bullfrog is our largest frog. 

 It is rather broad in body. 

 In the north it is usually a 

 greenish drab on the back 

 and yellowish white under- 

 neath. The skin may be 

 roughened with fine tuber- 

 cles. There is no lateral fold, 

 except a short fold over and 

 behind the tympanum. There 

 are a few dusky spots on the 

 legs. This frog in the Gulf 

 Region may be so dark as to 

 be almost black on the back 

 and heavily mottled beneath, 

 and even the webs of the feet 

 may be almost black. 



Structure: No ridges down 

 either side of back; web of 

 fourth toe extends to its tip; 

 male with internal vocal sacs, 

 inflation a flattened pouch 



164 



