THE BATRACHIA OF NORTH AMERICA. 



415 



Measurements of JVb. 9386. 



M. 



Length of head and body 050 



Width of head at posterior edge of tympanum 0195 



Length of head to posterior edge of tympanum 019 



Length of fore leg 022 



Length of fore foot Oil 



Length of hind leg to groin 073 



Length of tibia 024 



Length of tarsus 014 



Length of rest of foot : 025 



Since the above was written I have been able, through the kindness 

 of Professor Forbes, of the university at Champaign, 111., to examine 

 the type specimen of Messrs. Rice and Davis. It differs considerably 

 from the specimens above described, as follows :' The muzzle is not pro- 

 tuberant, so that the nostril is equidistant between the end of the 

 muzzle and the eye, as in the subspecies Areolata. The tympanic disk 

 is nearly round, and its long diameter is three-fourths that of the eye. 

 This specimen has twice the bulk. In other respects it does not differ. 

 A very strong glandular thickening of the skin extends from the eye 

 above the tympanum, and then descends posterior to it. The eyelid also 

 is thickened. \ 



Two specimens (No. 1382S) from Olney, 111., also received since the 

 above description was written, explain these discrepancies. The larger 

 of the two agrees with the type in all respects, but the smaller, which 

 about equals the type in dimensions, has the elongate muzzle of the 

 small ones that I have described above. In both the tympana are three- 

 fourths the orbit, and in neither is it decidedly oval. 



Eana areolata circulosa E. & D. 



Catalogue 

 number. 



No. of 

 spec. 



Locality. 



When col- 

 lected. 



From whom received. 



Nature of 

 specimen. 



9386 



2 

 2 







EolDeit Kennicott 



John and Charles Walker. 





13828 



Olney, 111 





Uo. 











Bana areolata capito Le Oonte. 

 Proceed. Ac. Phila., 1855, p. 425, Plate v. 



Not having at hand the only known specimen of this form, I copy 

 the description given by Le Conte. The proportions given by this author 

 indicate that it is intermediate in proportions between the subspecies 

 ^sopus and the others. Thus the width of the head in the latter enters 

 the length 2.33 times, and in the R. a. areolata three times. In E. a. 

 capito it enters 2.8 times. The spots are smaller than in B. a. circulosa, 

 but larger and more numerous than in R. a. cesopus and B. a. areolata. 



Above very rough, dark gray, or slate-color, speckled with black, 

 with six rows of roundish rows on the back ; sides speckled and irregu- 



