66 REPTILES, 



z. Very large specimen. Upper Essequibo. Presented by Sir R. 

 Schombiirgk. 



a. Very large specimen. Demerara. 



jS. Adult. Demerara. Presented by Captain Sabine. 



y. Adult : stuffed. Demerara. 



h. Adult: female. Andes of Ecuador. From Mr. Eraser's Collection. 



e. Adult: male. Andes of Ecuador. From Mr. Eraser's Collection*. 



'{^. Adult. Venezuela. From Mr. Dyson's Collection. 



Tj. Adult. Venezuela. From Mr. Dyson's Collection. 



i). Adult. Venezuela. From Mr. Dyson's Collection. 



t. Adiilt. Venezuela. From Mr. Dyson's Collection. Olive, mar- 

 bled with brown. 



K, \. Half-grown and young. Vera Cniz. From Mr. Cuming's 

 Collection. 



ju. Large specimen. Mexico. 



J'. Young : bad state. Mexico. From M. Salle's Collection. 



^. Adult. Jamaica. 



o. Adult. Jamaica. Back with a few large, brown, black-edged 

 spots. 



TT. Half-grown : skin. America. From Mr. Argent's Collection. 



p. Adult : stuffed. America. From the Haslar Collection. 



s. Adult: dried. America. 



r. Skeleton. S. America. 



V. Skeleton. Brazil. 



20. Bufo nebulifer. 



Bufo granulosus, Baird Sf Girarcl, Proc, Acad. Philad. 1852, p. 173, 

 nebulifer, Girard, I. c. 1854, p. 87 ; Hallow, ibid. 1856, p. 308. 



Crown very concave, on each side with a high ridge, beginning 

 from the nostril, not confluent with that of the other side, bifid 

 behind, one branch ending above the tympanum, and the other one 

 on the occiput ; edge of the upper jaw not dilated. Paratoids short, 

 round, or triangular ; tympanum very distinct. Toes half- webbed ; 

 tarsus mthout cutaneous fold. A vertebral line and a broader 

 lateral band of yellowish- white colour ; between the bifiu-eation of 

 the two ridges a black streak across the crown ; a few pairs of black 

 spots along the vertebral line. 



a. Adult. Vera Cruz, From Mr. Cuming's Collection. 



h. Adult. Mexico. From Mr. Cuming's Collection as B. Juspidus. 



c. Adult : female. Mexico. From M. Salle's Collection. 



d. Half-grown. Mexico. From M. Salle's Collection. 



e. Adult. Texas.' From Mr. Cuming's Collection. 



/. Adult. Central America. From Mr. Cuming's Collection. 



* There cannot be the least doubt that these specimens from G-uayaquil belong 

 to the same species ; the male is rather smaller, and exliibits all the warts covered 

 with spines, whilst in the female only some of the warts exliibit a horny surface. 

 Other male specimens in the Collection show the same pecidiarity. In tliis spe- 

 cies tlie size of the tympanum is subject to some variation in specimens from 

 the same locality and vrith the same external characters. 



