3808 BUFONID® 
about half the width of the eye. First finger longer than second ; 
toes half webbed; subarticular tubercles generally double; two 
Upper view of head. 
moderate metatarsal tubercles ; no tarsal fold. The hind limb being 
carried forwards along the body, the tarso-metatarsal. articulation 
reaches the eye. Upper surfaces covered with small warts; paro- 
toids elliptic, moderate, close to the eye. Olive above, with irregular, 
sometimes confluent, dark spots; belly immaculate, or with slight 
spots. Male with a subgular vocal sac. 
Ecuador ; Mexico. 
a-d. SQ. Andes of Ecuador. Mr. Fraser [C.]. (Types.) 
44, Bufo dipternus. 
Bufo dipternus, Cope, Amer. Nat. xiii. p. 437." 
Two faint straight supraorbital ridges, and a postorbital, but no 
supratympanic ridge ; snout truncate; tympanum rather indistinct, 
two thirds the diameter of the eye. Toes shortly webbed at the 
base; two shovel-shaped metatarsal tubercles. The hind limb 
being carried forwards along the body, the tarso-metatarsal articula- 
tion reaches the tympanum. Skin rough with small tubercles; 
parotoid a wide oval, in contact with the postorbital ridge. Above 
ashen, with large brown, black-edged spots; below immaculate ; 
metatarsal spurs black. 
Montana. 
45. Bufo lentiginosus. 
Bufo lentiginosus, Giinth. Cat. p. 65. 
Catesby, Nat. Hist. Carol. ii. p!. 69; Bart. Travels in Carol, p. 279. 
? Rana musica, Linn. S. N. i. p. 554. 
Bufo lentiginosus, Shaw, Zool, 11. p. 173. 
musicus, Tschudi, Batr. p. 88; Harlan, Journ. Ac. Philad, v. 
p. 344, 
A supraorbital and a postorbital bony ridge, forming together a 
right angle; snout short, blunt; interorbital space as broad as, or 
a little narrower than, the upper eyelid; tympanum very distinct, 
generally nearly as large as the eye. First finger extending beyond 
