4. ErFo. 315 



fold. The hiud limb being- carried forwards along the body, the 

 tarso-metatarsal articulation reaches in front of the tympanum. 

 Upi:)er surfaces with irregular warts ; parotoids very prominent, 

 narrow, elongate, pointed behind ; a lateral series of large warts, 

 confluent with the parotoid. Upper surfaces brown, with large, 

 irregular, black-edged dark spots ; beneath with a few dark spots ; 

 sometimes a larger dark spot on the sternal region. Size of B. 

 calamita. 



S. Brazil ; Uruguay ; Buenos Ayres. 



a-h. $ . Monte Video. Dr. Cunningham [P.]. 



c-d. 2 & hgr. Buenos Ayres. C. Darwin. Esq. [P.J. 



e-f, 5 , Oran Salta, Buenos Ayres. E. W. AVhite, Esq. [C.]. 



(The latter specimens show a coloration very similar to that of B. 

 viridis^ 



56. Biifo molitor. 



Bufo molitor, Tschudi, Faun. Per., Ilerp. p. 73, pi. 12 ; Peters, Mon. 



Berl. Ac. 1873, p. 624. 

 andianuS; Cope, Proc. Ac. Philad. 1868, p. 115. 



Appears to differ from B. marinus in the following points : — Snout 

 pinched, narrow, angulate; tympanum less than half diameter of 

 eye ; parotoid elongate, triangular, narrow, continued into a lateral 

 dermal fold. 



W. S. America. 



57. Bufo marinus. 



Bufo agua, Giinth. Cat. p. 65. 

 Seha, i. pi. 76. f. 1. 



Eana marina, Linn. S. N. i. p. 356 ; Lanr. Syn. Rept. p. 31. 

 Bufo marinus, Schneid. Hist. Aniph. p. 219; Shaiv, Zool. iii. p. 155; 



Merr. Tent. p. 182; Gravenh. Delic. p.- 54; Girard, U.S. Expl, 



Exped., Herp. p. 80, pis. v. f. 1-3, & vi. f. 1-3; Steindachn. 



Kovara, Amph. p. 45 : Peters, 3Ion. Berl. Ac. 1872, p. 220; Bspada, 



ViaJ. Pacif., Vert. p. 195. 

 aQua, Latr. Bept. ii. p. 13 ; Eaud. Rain. p. 99, pi. 37, and Rept. 



viii.p. 209; Spix, Spec. Nov. Test. Ran. p. 44, pi. 15 ; Wied, Beitr. 



Nat, Bras. i. p. 551, and Ahhild. ; Tschudi, Batr. p. 88 ; Eum. ^• 



Bibr. p. 703 ; Hensel, Arch. f. Naturg. 1868, p. 141 ; Brocchi, Bull. 



Soc. Phihm. (7) i. p. 188. 



horricluf!, Baud. Rain. p. 97, pi. 98, and Rept. viii. p. 201. 



humeralis, Baud. Rept. viii. p. 205. 



Bombinator horridus, Merr. Tent. p. 179. 

 Bufo maculiventris, Spix, I. c. p. 43, pi. 14. f. 1. 



ictericus, Spix, I.e. p. 44, pi. 16. f. 1; Gravenh. I. c. 



lazarus, Spix, I. c. p. 45, pi. 17. f. 1. 



Phryncidis agua, Cope, Proc. Ac. Philad. 1S63, p. 357. 



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

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

 ridge, if present, not very prominent ; snout short, bknit ; iuter- 

 orbital space much broader than the upper eyelid ; tympanum dis- 



