186 BATRACHIA : SALIENTIA, XXVII. 



bb. Tympanum as large or larger than eye. 



529. R. clamata Daudin. GREEN FROG. Green or brownish, 

 brighter in front ; generally with irregular small black spots ; arms 

 and legs blotched, yellowish or white below ; tympanum large ; 

 glandular folds large ; toes well webbed ; first finger not extending 

 beyond second; tibia and femur equal, ^ body. L. 3. E. U. S., 

 in springs, etc. (Lat., called to.) 



aa. Glandular folds on sides of back obsolete or nearly so ; dark spots on back 

 small; web of feet reaching tip of fourth toe. 



530. R. catesbiana Shaw. BULL-FROG. Greenish, of varying 

 shades, with small faint dark spots above ; head usually bright 

 pale green ; legs blotched ; ear large toes broadly webbed ; femur 

 equal to tibia, not half body. L. 5 to 8. Largest of the frogs ; in 

 ponds and sluggish rivers, from Kansas E. ; remarkable for its 

 sonorous bass notes. (To Mark Catesby, who first figured the 

 bull-frog.) 



