286 BUFONID. 
*** Jaws normal. 
7 Snout not prominent. 
+ Tympanum more than half the width of the eye, 
perfectly distinct. 
Parotoids narrow, elongate, pointed be- 
hind; tarso-metatarsal articulation not 
Pea UT ENS CVE! 3. coats, tna one ae 5d. arenarum, p. 314. 
Rarovords ‘GNOrmous 2... «5 sesh fae e 57. marinus, p, 315. 
Parotoids moderate, elongate ; tarso-me- 
tatarsal articulation reaching in front 
of ‘the eye, or beyond... .\. .. eae: 58. crucifer, p. 316. 
Parotoids short, round or subtriangular . 62. valliceps, p, 319. 
MR OeS Near yetTOCly Natyerp ets sare tan" chaeees 68. melanochlorus, p. 320. 
First finger not extending beyond second 69. sternosignatus, p. 323. 
t¢ Tympanum less than half the width of the eye, 
or indistinct. 
Tympanum perfectly distinct ; a tarsal 
fold; a lateral dermal fold ........ 56. molitor, p. 315. 
Tympanum distinct in its anterior half; 
fingers remarkably elongate ........ 65. auritus, p. 321. 
Tympanum hidden ; fingers very slender. 66. veraquensis, p. 321. 
Tympanum distinct, one fifth orbit ; toes 
SOB hy swieD bed sh i,.t eqns ss mie se vee 67. coccifer, p. 322. 
rr Snout prominent, contracted. 
No tarsal fold; interorbital space narrow. 70. canaliferus, p. 325, 
No tarsal fold; interorbital space slightly 
broader than the upper eyelid ...... 72. granulosus, p, 324. 
A tarsal fold; no preorbital ridge...... 71. argillaceus, p. 324. 
PAECAMLON GE sis aye loose man tne awe 73. gutturosus, p. 324. 
b, Upper eyelid produced in a 
horn-like dermal appendage. 60. ceratophrys, p. 319. 
2. No tympanum. 
Derm of head involved in cranial ossifi- 
SENG CT Ee ERE 4 SORTS SS ce ey 76. fastidiosus, p. 326. 
Digits inclosed in the skin, leaving the 
longest projecting ....... vel a ETE: eprohds, p. 20: 
1. Bufo borbonicus. 
Bufo cruentatus, Giith. Cat. p. 62. : 
Hylaplesia borbonica, Bove, Isis, 1827, p. 294; Tschudi, Baty. p. 70; 
“Peters, Mon. Berl. Ac. 1863, p. 81, & 1867, p. 34. 
Bufo cruentatus, Tschudi, Batr. p. 88; Dum. § Bibr. p. 62. 
—— horbonicus, Cope, Journ. Ac. Philad. (2) vi. 1867, p. 193. 
Habit slender. Crown without bony ridges; snout obliquely 
truncate, with angular canthus rostralis; loreal region vertical ; 
interorbital space broader than the upper eyelid ; tympanum small, 
