BUFO. 249 
Hab. Nortu America, New Mexico and Sonora.—MeExico, Mazatlan (Cope), Tamaulipas 
(Brocchi). 
Crown of the head broad, flat, rendered slightly concave by the raised supraciliary 
border; in old specimens sometimes even a slight parietal crest is distinguishable ; 
interorbital space much broader than the supraocular cover. Snout short, contracted, 
somewhat pointed, with sharp curved canthus rostralis. Tympanum distinct, about 
half the size of the eye, which itself is rather small. Parotoids rather large, produced 
behind. Upper parts densely covered with tubercles of subequal size, lower parts 
granular. First and second fingers equal in length. ‘Toes two-fifths webbed; two 
small metatarsal tubercles; no tarsal fold. Brownish-ash, uniform or marbled with 
darker ; some of the tubercles black, others white ; lower parts white. 
Ad. 2. 
Distance of vent from snout . . . . . . . . . . 46 millim. 
3” ” metatarsal joint. . . . . . . 88 ,, 
end of fourth toe . . . . . . 55 ,, 
39 9} 
This toad would seem to belong to the fauna of the Southern United States rather 
than to that of Central America; however, Cope distinctly enumerates Mazatlan 
among the localities from which he has seen specimens. 
11. Bufo marinus. 
» Seba, Loc. Rerum Nat. Thes. i. t. 76. fig. 1; Walbaum, Schr. Ges. naturf. Freund. Berl. 
v. p. 230 (1784). 
Rana marina, Linn. Syst. Nat. i. p. 356. 
Bufo marinus, Schneid. Hist. Amphib. p. 219; Girard, U.S. Explor. Exped., Herpet. p. 80, t. 5. 
figg. 1-3, t. 6. figg. 1-3; Peters, MB. Ak. Wiss. Berlin, 1872, p. 220; 1873, p. 618; Cope, 
Bull. U. S. Nat. Mus. no. 32, p. 10 (1887) ; Brocchi, Miss. Sc. Mex., Batr. p. 82; Duggs, 
La Natural. (2) ii. p. 482 (1896). 
Bufo agua, Latr. Rept. ii. p. 13; Giinth. Batr. Sal. p. 65; Salvin, P. Z. S. 1860, p. 460; Cope, 
Proc. Am. Phil. Soc. xxii. p. 379 (1885); Sumichrast, Bull. Soc. Zool. Fr. 1880, 
. 188. 
Bufo horribilis, Wiegm. Isis, 1838, p. 654; Peters, MB. Ak. Wiss. Berlin, 1863, p. 81. 
Hab. Mexico, Presidio de Mazatlan, Ventanas (forrer), Tampico and Colima 
(Richardson), Jalisco, north of the Rio de Santiago (/. D. G.), Cordova, Orizaba, 
Tehuantepec (Sumichrast), Vera Cruz (Cope), Michoacan, Guadalajara, Cuautla 
in Morelos, and Tabasco (Dugés), Coatzacoalcos (Street), Yucatan (Schott), 
Cozumel I. (Gawmer); GuatemaLa, Lanquin and Coban (Salvin), Peten (Cope) ; 
Nicaragua (Cope); Costa Rica (Cope); Panama (Cope), Chiriqui (Peters).— 
Tropica, SoutH AMERICA; ANTILLES. 
Crown of the head with prominent ridges round the orbit extending forward along 
