4. BUFO. ol 
fold. The hind limb being carried forwards along the body, the 
tarso-metatarsal articulation reaches in front of the tympanum. 
Upper 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. 
8. Brazil; Uruguay; Buenos Ayres. 
a-b. 2. Monte Video. Dr. Cunningham [P.]. 
e-d, 2 & hgr. Buenos Ayres. C. Darwin, Esq. [P.1. 
e-f. 9. Oran Salta, Buenos Ayres. E. W. White, Esq. [C.]. 
' (The latter specimens show a coloration very similar to that of B. 
viridis.) 
56. Bufo molitor. 
Bufo molitor, Tschudi, Faun. Per., Herp. p.73, pl. 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. 
Seba, i. pl. 76. f. 1. 
Rana marina, Zinn. S. N. 1. p. 356; Laur. Syn. Rept. p. 31. 
Bufo marinus, Schneid. Hist. Amph. p. 219; Shaw, Zool. iii. p. 155; 
Merr. Tent. p. 182; Gravenh. Delic. p. 54; Girard, U.S. Expl. 
Exped., Herp. p. 80, pls. v. f. 1-8, & vi. f. 1-3; “Steindachn. 
Novara, Amph. p. 45; Peters, Mon. Berl. Ac. 1872, p. 220; Espada, 
Viaj. Pacif., Vert. p. 195. 
agua, Latr, Rept. ii. p. 13; Daud. Rain. p. 99, pl. 87, and Rept. 
viii. p. 209; Spra, Spec. Nov. Test. Ran. p- 44, pl. 15; Weed, Beitr. 
Nat. Bras. i. p.551, and Abbild.; Tschudi, Batr. p- 88; Dum. & 
Bibr. p. 703; Hensel, Arch. f. Naturg. 1868, p. 141 ; Brocchi, Bull. 
Soc. Philom. (7) i. p.188. 
horridus, Daud. Rain. p. 97, pl. 96, and Rept. viii. p. 201. 
humeralis, Daud. Rept. viii. p. 205. 
Bombinator horridus, Merv. Tent. p. 179. 
Bufo maculiventris, Spt, 1. c. p. 43, pl. 14. f. 1. 
ictericus, Sprr, l.c. p. 44, pl. 16. f.1; Gravenh. 1. e. 
lazarus, Spa’, lc. p. 45, pl. 17. f. 1. 
Phrynoidis agua, Cope, Proc. Ac. Fhilad, 1863, 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, blunt; inter- 
orbital space much broader than the upper eyelid ; tympanum dis- 
