8 Trans. Acad. Set. of St. Louis 



any physical differences. Perhaps the systematic value 

 of these characters, and their evolutionary importance 

 has been underestimated. 



The range of Bufo fowerli is very likely more ex- 

 tended than recorded data would indicate. Since it has 

 been found in the Carolinas and Georgia, and now in 

 Missouri, it is probable that it occurs in the intermediate 

 territory. In his ''Notes on Illinois Reptiles and Am- 

 phibia" Garman^^ stated that Bufo americanus is the 

 common form in Illinois, but described a call which he 

 suggested might be that of B. lentiginosus. His descrip- 

 tion, however, fits the call of B. foivleri, and it would 

 seem not improbable that this was the species which he 

 really heard. Cope^* remarked in 1889 that ' ' a specimen 

 of the var. Americanus from Nebraska approximates 

 sufficiently close to the last specimen {Fowleri) to indi- 

 cate that the Fowleri can not be regarded as under all 

 circumstances separate, or be accorded full specific 

 rank." When it is recalled that at the time this was 

 written Cope believed B. fowleri to be confined to north- 

 eastern Massachusetts, it seems not improbable that he 

 was misled in his diagnosis, and that his Nebraska speci- 

 men really was B. fowleri. In any event it is clear that 

 much remains to be done before the exact range of this 

 species can be stated with any certainty. 



13. Garman, H.: Bull. 111. State Lab. of Nat. Hist., 1891, pp. 185-190. 



14. Loc. Cit., p. 279. 



