4. BTJFO. 



309 



second ; toes half webbed ; two metatarsal tubercles ; no tarsal 

 fold. The hind limb being carried forwards along the body, the 

 tarso-metatarsal articulation reaches the tympanum or the eye. 

 Upper surfaces with irregular warts ; parotoids moderate, elliptic 

 or kidney-shaped. Brownish olive above, with dark-brown spots, 

 two of which form a chevron between the eyes ; generally a light 

 vertebral line ; lower surfaces immaculate or dark-spotted. Male 

 with a subgular vocal sac. 



Yapv. a. americanus. 



Bufo americanus, {Leconte) Holbr. N.-Amer. Hcrp. v. pi. 4 ; Dum. 

 8,- Bibr. p. 695 ; Hallow. Free. Ac. Philacl. 1856, p. 251 ; Girard, 

 U.S. Mex. Bound. Surv. ii. p. 25 ; Wied, Noca Acta, xxxii. p. 121. 



quercicus, Holbr. N.-Amer. Herp. v. pi. 3. 



dorsalip, Halloxc. Proc. Ac. Philad. 1852, p. 181, and in Sit- 



greaves, Exjied. Zuni 4' Color. Biv. p. 142, pi. 19. 



— ;- ^oodhousii, Girard, Proc. Ac. Philud. 1854, p. 86. 



Chilophryne americana, Co23e, Proc. Ac. Philad. 1863, p. 357. 



Upper view of head. 



Lower surface of foot. 



Supraorbital ridges low ; subarticular tubercles under the toes 

 generally double ; inner metatarsal tubercle large, compressed, 

 spade-shaped ; outer tubercle small. 



a. Yg. 

 h-d. Yg. 

 e. $. 



/,!/. 2 &^ albmos, yg 

 h-i, k. 2 & yg. 

 l-m, «.(??. 

 o. 2. 

 2. 



Sir J. Richardson 

 Su" J. Richardson 



Dr. J. Green [P.]. 

 Lord Ampthill [P.]. 



9- 

 7: 



Great Bear Lake. 



Lake Winnipeg. 



New York. 



N. America. 



N. America. 



N. America. 



America. 



Mexico. 

 (This specimen is intermediate between vars. A and B.) 

 Many spec, \g. Brazil (?P). Dr. Gardiner [P.] 



2 • Puerto Cabello (?). 



P. 

 P. 



Yae. B. musicus. 



Bufo musicus, Zatr. Rept. ii. p. 127 ; Daud. Bain. p. 9, pi. 33. f. 3, 

 andBejjt. viii. p. 190 ; Merr. Tent. p. 185 ; Gravenh. Delic. p. 59 ; 



