326 BtrtfONID.33. 



tarsal fold. The hind limh being carried forwards along the bod}', 

 the tarso-metatarsal articulation reaches the tympanum. Upper 

 surfaces covered with rather smnll warts ; parotoids very prominent, 

 elliptical or crescent-shaped, transverse. Uniform brown above ; 

 beneath immaculate. Male with a subgular vocal sac. 

 \V. Indies. 



a-c. Hgr. & yg. Cuba. W. Macleay, Esq. [P.]. 



d, e. tf $ . Cuba. 



75. Bufo empusus. 



Peltaphryne empusa, Cope, Proc. Ac. Philad. 1862, p. -1 14. 

 Otaspis empusa, Cope, Proc. Ac. Philad. 1868, p. 312. 



Differs from B. peltocepTialus in the existence of an additional 

 superficial arch of the skull, which passes from the mastoid region 

 behind the auricular meatus, thus enclosing the latter, and causing 

 it to be a mere foramen perforating a shield of bone. Tympanum 

 small, only one fourth or one third the length of the palpebral 

 border in diameter; parotoid small, rounded, lateral. 



Cuba. 



76. Bufo fastidiosus. 



Cranopsis fastidiosus, Cope, Journ. Ac. Philad. (u. s.) viii. part 2, 

 p. 96, pi. 23. f. 1. 



Cranial integument entirely occupied by a rugose ossification ; 

 cranial ridges consisting of elevated canthus rostralis, supra- and 

 postorbital border, and a supratympanic crest extending to the 

 parotoid gland ; these, especially the last, are obtusely thickened ; 

 supratympanic crest produced downwards behind the orbit as a 

 rugose osseous plate to opposite the inferior border of the eye, 

 bounding the position usually occupied by the membranum tympani 

 by a rough concave margin ; no tympanum. Fingers short ; toes 

 half webbed ; metatarsal tubercles indistinct ; no tarsal fold. The 

 hind limb being carried forwards along the body, the end of the 

 longest toe reaches the end of the snout. Parotoids short, subtri- 

 angular, as deep as long ; upper surfaces of body and limbs studded 

 with round warts, so closely on the latter region as to resemble a 

 pustular disease. Yellowish brown above ; a blackish band extends 

 from the parotoid to the axilla ; top of head yellow or brownish 

 yellow ; throat with a black spot. 



Costa Rica. 



77. Bufo epioticus. 



Crepidius epioticus, Cope, Journ. Ac. Philad. (n. s.) viii. part 2, 

 p. 97, pi. 23. f. 2. 



Cranial crests consisting of orbito-tympanic, supraorbital, and 

 can thai ridges, the last two continuous with each other and ex- 



