314 BTJFOXID^E. 



53. Bufo galeatus. 

 Bufo galeatus, Gunth. Kept. Brit. Ind. p. 421, pi. 26. f. L. 



Closely allied to B. cehbensis, from -which it differs in the following 

 points : — Snout narrower ; orbito -tympanic bony ridge higher, con- 

 fluent with the parotoid, so that externally no division is visible 

 between them ; tympanum very distinct, three fourths the width of 

 the eye. Greyish brown above, marbled with chestnut-brown ; 

 throat and chest pink ; lower surfaces marbled with brown. 



Gamboja. 



a. $ . Gamboja. M. Mouhot [C.]. (Type.) 



54. Bufo bocourtii. 



Bufo bocourti, Brocchi, Bull. Soc. Philom. (7) i. p. 186. 



A slight canthal, a supraorbital, a postorbital, and a parietal 

 bony ridge ; the latter very short, curved inwards ; supraorbital 

 and postorbital ridges forming a right angle ; snout short, vertically 

 truncate ; tympanum hidden. First and second fingers equal ; toes 

 half webbed ; two moderate metatarsal tubercles ; a slight tarsal 

 fold. Upper surfaces with conical warts ; parotoids narrow, elongate 

 and subtriangular. Sides of head and body marbled with black; 

 upper lip white-edged beneath the eye ; a light vertebral line. 



Totonicapam, Mexico. 



55. Bufo arenaram. 



Bufo arenarum, Hensel, Arch. f. Naturg. 1867, p. 148 ; Carrier ano, 



. Atti Ace. Tor. xiv. 1879, p. 891. 



marinus, var. platensis, Espada, Viuj. Pacif., Vert. p. 202. 



Upper view of head. 

 Crown with moderately prominent bony ridges, viz. a canthal, 

 confluent with a preorbital, a supraorbital, and a very short orbito- 

 tyrnpamc ; canthal ridge not confluent with supraorbital ; snout 

 short, blunt ; interorbital space as broad as upper eyelid ; tympanum 

 very distinct, vertically elliptic, nearly as large as the eye. First 

 finger extending beyond second; toes half webbed, with simple 

 subarticular tubercles ; two moderate metatarsal tubercles ; a tarsal 



