186 patuaciiia: salientia. — xxvii. 



f>b. Tympanum ns InrRe or Inrprr tlian cvc. 



fr29. R. clamVa»« Latrcillc. CiuEKN FnoG. Green or brownish, 

 brij^hter in front; <rt'ni'r:illy witli irri'j;iilar small black spots; arms 

 and lej;8 blotched, yellowish or wliite below; tympanum large; 

 {glandular iolds lar;:e ; toes well webl)ed; first finger not extending 

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

 in springs, etc. (Lat., calling.) (R. clamata.) 



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

 small; web of feet reaching tip of fourlh toe. 



530. R. catesbeana Sliaw. Bull-Frog. Greenish, of varying 

 Bhades, with small faint dark spots altove ; head usually l)rij;ht 

 pale fjreen ; legs blotched ; car large ; toes broadly webbed ; femur 

 equal to tibia, not half body. L. 5 to 8. Largest of the fro^.'s ; in 

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

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

 bull-frog.) 



.')3o b. R. virgatipes Cope. — No longitudinal glandular folds 

 f)n hark ; tvmpiiiunu e(pials eye ; webs rather short, two phalanges 

 of fourth toe free ; vomerine teeth between inner nares ; inter- 

 ocular space ^ width of eyelid. Color al)ove olive-brown with two 

 light-brown longitudinal bands on each side, the inferior band 

 bounded below by a wide band of black spots ; limbs blotched with 

 black. L. 60 mm. Atlantic Co. N. J. (L. S.) (L. striped-foot.) 



For additional species, see Appendix. 



