ANUKA BUFON1DAE BUFO M1CROSCAPHUS. 627 



B.-BATRACHIA. 



ANURA. 



BUFONIFORMIA. 



BUFONIDAE. 



74. Bufo microscaphus, Cope. 



Bufo microscaphus, COPK, Proc. Acacl. Nat. Sci. Phila., 1866, 301. Id., Check-List, 



1875, 29. 



Head broader than long, obtuse ; muzzle descending in full arc to 

 labial border from line of orbit. Superciliary ridges well marked, but con- 

 cealed by the thick skin, plane, parallel. Postorbital not prominent. Ver- 

 tical gutter narrow. Eyes large, prominent; double tympanum. Parotoids 

 broad, smooth. Skin little roughened. Toes two-thirds webbed. Shovel very 

 small, frequently not black-edged; outer tubercle small, heel to end of muzzle. 

 Above blackish, a black spot on each parotoid, and dark light-centered bar 

 on femur and tibia. A yellowish bar across front and palpebrse, and spot 

 on nape ; muzzle dark. Total length, 1 inch 5.5 lines ; to postorbital ridge, 

 7.5 lines ; fore limb, 1 inch 9 lines ; hind limb, 3 inches 2 lines, femur one- 

 third included. . . . The oval well-separated parotoids and general appear- 

 ance of this species ally it to the B. speciosus, Girard. But in that animal 

 the supraorbital ridges are obsolete, and the metatarsal shovel is very much 

 stronger. The B. dorsalis, Hallowell (B. ivoodliousei, Gird.), is also allied, 

 but is in all proportions and details more elongate, and has a stronger 

 shovel and head-ridges ; it always has the dorsal band, which never exists 

 in the microscaplms, and never the transverse face-band of the latter. 

 Descr. orig. 



Numerous specimens are in my collection from Fort Whipple, where 

 it is the characteristic species, and very abundant. 



75. Bufo lentiginosus frontosus, Cope. 

 BttfofrontosuK, COPE, Proc. Acatl. Nat, Sci. Phila., 1866, 301. 

 Bufo leniifiinosus subsp. frontosus, COPE, Check-List, 1875, 29. 



A species most allied to the B. americanus, but differing in the shorter 



