4. BOTo. 299 



Rana mosaica, Seetzen, Seise Syr., Palast. fyc. iii. p. 492. 

 Bufo spinosus, Socage, Proc. Zool. Soc. 1868, p. 845. 



Crown without bony ridges ; snout shorb, rather blunt ; interorbital 

 space flat orjlightly concave, as broad as or a little narrower than 

 the upper eyelid ; tympanum very distinct, vertically oval, as large 

 as the eye, or nearly so. Krst finger much longer than second ; toes 

 one-third webbed, with simple subartioular tubercles ; two moderate 

 metatarsal tubercles ; a tarsal fold. The hind limb being carried 

 forwards along the body, the tarso-metatarsal articulation reaches 

 the tympanum or the anterior corner of the eye. Upper parts with 

 irregular, depressed, often spine-bearing warts ; parotoids elliptic, 

 more or less elongate. Above uniform or variously spotted ; some- 

 times a light vertebral line ; beneath immaculate or with large 

 burnt-like spots. Male with a subgular vocal sac. 



Africa; Arabia. 



a-c, d-f. $ & yg. Egypt. A. Christy, Esq. [P.]. 



g. S- Belliauch, Upper Egypt. Dr. Anderson [P.] . 



h. 5 . Luxor, Upper Egypt. Dr. Anderson [P.J. 



i-m. 2 & hgr. Lake AshangH, Abyssinia. W.T. Blanford, Esq. [P.]. 



n-o. cj 2 • Antalo. 



p-q. 2 & yg- Zambesi Exped. Sir J. Kirk [C.]. 



r-s. 2 . Gambia. 



t. 2 . Old Calabar. Dr. J. A. Smith [P.]. 



it-y. (} , 2 , & jg, Carangigo. Dr. Welwitsch [0.1. 



z. 2 • Duque de Bragance. Prof. Barboza du Socage 



[P.], 



a, p. 6 2- W. Africa Mr. Rich [0.]. 



y. c?. Midian. Capt. Burton [P.]. 



Vae. a. — Smaller, from snout to vent 55 millim. ; tympanum 

 quite close to the eye ; fingers slender. 

 W. Africa. 



S, f. d 2 • Coast of Guinea. 



f. 2 • Coast of Guinea. Su- A. Smith [P.]. 



ri- Hgr. Sierra Leone. 



Vae. B. — Larger, from snout to vent 136 millim. ; interorbital 

 space rather concave ; spots generally large, well defined. 

 S. Africa. 



(9, I. 2 & yg. S. Africa. Sir A. Smith [P.].. 



K. 2 • Cape of Good Hope. Sir A. Smith [P.]. 



X-/i. 2 • Port Elizabeth. 



V. 2 ■ Port Natal. T. Ayres, Esq. [C.]. 



28. Bufo benguelensis. (Piate XIX. fig. 3.) 

 Bufo guineensis, part., Gunth. Cat. p. 59. 



Very closely allied to B. regularis, from which it differs in the 

 following points ; — Tympanum not two thirds the width of the eye. 



