252 BATRACHIA SALIENTIA. 
15. Bufo valliceps. 
Bufo valliceps, Wiegm. Isis, 1838, p. 657; Peters, MB. Ak. Wiss. Berlin, 1863, p. 81; Bouleng. 
Batr. Sal. p. 319; Sumichrast, Bull. Soc. Zool. Fr. 1880, p. 188; Cope, Bull. U. S. Nat. 
Mus. no. 82, p. 11 (1887) ; Brocchi, Miss. Sc. Mex., Batr. p. 79. 
Bufo cristatus, Wiegm. Isis, 1833, p. 663 ; Peters, lL. c. 
Bufo granulosus, Baird & Girard, Proc. Ac. N. Sc. Philad. 1852, p. 173 (nec Spix). 
Bufo nebulifer, Girard, Proc. Ac. N. Sc. Philad. 1854, p. 87; U.S. & Mex. Bound. Surv. ii. p. 25, 
t. 40. figg. 1-4; Salvin, P. Z. S. 1860, p. 460. 
Hab. Norra America, Texas.—Mexico, Presidio de Mazatlan (Forrer), ‘Tampico 
(Richardson), -Tamaulipas and Puebla (Cope), Jalisco (/. D. G.), Jalapa 
(Hoge), Orizaba, Vera Cruz, Tehuantepec (Sumichrast), Atoyac and Teapa 
(H. H. Smith); Guatemata, Duefias and Vera Paz (Salvin) ; Nicaragua (Cope) ; 
Costa Rica. 
Crown of the head with high projecting crests, the supraciliary ridge forked behind, 
the parietal branch being very distinct: the highest part of the crests the hindmost 
‘part of the supraciliary ridge. Interorbital space deeply concave, broader than the 
supraocular cover. Snout obtuse. Tympanum distinct, about half the area of the 
eye. Parotoid triangular, rather small. Upper parts covered with rough tubercles; a 
series of larger pointed ones from the parotoid along the side of the body. Lower 
parts granular. Central-American specimens have the back less tubercular than those 
from Texas, sometimes partly smooth. First finger longer than the second. Toes 
one-third webbed ; two metatarsal tubercles; no tarsal fold. Brownish or yellowish, 
marbled with darker, sometimes a yellow vertebral band; generally a black interocular 
cross-bar and a black band on or from the tympanic region; sometimes a few scattered 
deep black spots on the back. Central-American examples have the lower parts more 
or less variegated with black. 
Ad. 2. Ad. 9. 
Distance of vent from snout. . . . « . 118 millim. 95 millim. 
” » metatarsal joint . . 90 ,, 90 Sy, 
7 ” end of fourth toe. . 125 _,, lll _,, 
The rough-skinned Northern form passes gradually into the smoother, black-bellied, 
Central-American race. I should have been inclined to regard the latter as the 
Bufo melanochlorus of Cope, but this author describes that species as having the toes 
nearly free, which does not apply to any of the specimens examined by me. Also the 
measurements of the hind leg appear to differ considerably. 
16. Bufo melanochlorus. 
Bufo valliceps, var., Cope, Journ. Ac. N. Sc. Philad. viii. p. 100 (1875). 
Bufo melanochlorus, Cope, Proc. Am. Phil. Soc. 1877, p. 85. 
Hab. Eastern Costa Rica (Gab6). 
