628 ZOOLOGY REPTILES AND BATRACHIANS OP ARIZONA. 



and more elevated cranium, longer and larger hind limbs, and more acu- 

 minate parotoid glands. The cauthus rostrales not marked ; the muzzle 

 descending very steeply from the anterior angles of the orbits, shorter than 

 the elevated, perpendicular muzzle. Frontal ridges higher than eyelids, 

 rising steeply behind, terminating in two short convergent tuberosities, 

 divergent, with interior crenations behind. Postocular ridge equally devel- 

 oped, sending a very small process to the anterior acuminate extremity of 

 the parotoids. Elevation of cranium at parietal tubercle equal to length 

 of same from the same point. Eye large ; tympanum distinct, half eye ; 

 parotoid narrow, long, acuminate at both ends. Elbow to anterior margin 

 of orbit ; heel to end of muzzle. Skin everywhere with numerous small 

 tubercles ; soles rough ; toes half webbed. Brown above, with pale verte- 

 bral line, and three pairs of deep-brown medium-sized spots, with paler 

 centers. Sides and lips with small brown spots. Femur and tibia with 

 one indistinct brown cross-bar each. Below uniform yellow. Total length, 

 4 inches, of which the head is 9 lines to postocular ridges ; breadth between 

 orbits, 2.5 lines ; hind limb, 5 inches ; sacrum, 1 inch across. Dcscr. orig. 

 One specimen from Los Pinos, Rio Grande, N. Mex. ; type of the species. 



70. Bufo alvarius, Gir. 



Biifo alrariux, Gin,, apud BD., U. S. & Mex. Bound. Surv., ii, pt. ii, 1859, 36, pi. 41, 

 u'gs. 1-0 (valley of the Gihi and Colorado). COPE, Check-List, 1875, 29. 



Upper surface of head near plane upon its middle region ; orbits bor- 

 dered by a low and rounded-off ridge ; its skin being thin and adhering to 

 the skull. Parotoids well developed and subreniform. Eyes and tym- 

 panum rather large also. Tongue elongated, broadest posteriorly. Upper 

 jaw emarginated. Two large carpal callosities. A membranous fold at the 

 inner lower edge of the tarsus. Toes palmated ; two metatarsal tubercles. 

 Palms and soles coarsely granular. Upper surface of body exhibiting 

 numerous glandular tubercles. A large pustular swelling upon the thighs. 

 Color uniformly dark-green. Dcscr. orig. 



Originally described, as above, from the southern and western portions 

 of the Territory ; not observed by me. 



