4. BTJFO. 321 



the orbit. Skin nearly smooth above, except on the scapular and 

 iliac regions ; parotoids quite small, subtriangular, oblique ; a 

 lateral dermal fold. Green, with deep black spots ; throat and 

 thorax black. 



E. Costa Eica. 



64. Bufo coniferus. 



Bufo conifenis, Cope, Proc. Ac. Philad. 1862, p. 158. 

 Chilophryne conifera, Cope, Proc. Ac. Philad. 1863, p. 357. 



Crown with prominent ridges, viz. a canthal, a preorbital, a 

 supraorbital, a postorbital, a parietal, and a short orbitb-tympanic ; 

 supraorbital ridges perfectly straight; parietal ridges slightly 

 directed inward ; snout prominent ; tympanum distinct, half the 

 size of the eye. Hind limb elongate. Toes extensively webbed ; 

 two large, flat, oval metatarsal tubercles ; no tarsal fold. Dorsal 

 region with obtuse tubercles ; numerous elongate conic warts on the 

 sides, largest on a fold from parotoid to groin ; parotoid very small, 

 not more, than half the extent of the upper eyelid, studded with 

 conic warts. Brownish grey above, with a few large dark-brown 

 spots, which do not interrupt a median line. 



Turbo Eegion, Colombia. 



65. Bufo auritus. 



Bufo auritus, Cope, Journ. Ac. Philad. (n. a.) viii. part 2, p. 09, 

 pi. 23. f. 4. 



Crown flat, with prominent ridges, viz. a canthal, a supraorbital, 

 a postorbital, a straight parietal, and an orbito-tympanic ; tympanum 

 distinct in its anterior half. Fingers remarkably elongate ; toes elon- 

 gate, half webbed; no tarsal fold. The hind limb being carried forwards 

 along the body, the tarso-metatarsal articulation reaches beyond the 

 tip of the snout. Tubercles of the skin small, spinulose, most 

 numerous on the sides, wanting below ; parotoids quite smaU, 

 surmounted by several dermal spines. Colour brown ; a quadrate 

 patch on vertex from orbits to occiput, an oblique band from the 

 latter outwards on each side, and a spot on each lateral sacral region 

 black ; belly marbled with black. 



Costa Eica. 



66. Bufo veraguensis. 



Bufo veraguensis, OUnth. Cat. p. 142. 

 Bufo veraguensis, Schmidt, lienksehr. Ac. Wien, 1858, p. 263, t. 2. 



f. 20, & t. 3. f. 21. 

 Chilophryne veraguensis, Cope, Proc. Ac. Philad. 1863, p. 357. 



Crown concave, with obtuse bony ridges, viz. a supraorbital, a 

 postorbital, an oblique parietal, and an orbito-tympanic ; tympanum 

 entirely hidden. Fingers very slender, first shorter than second; 



