REPTILES. 



9 





the throat minutely granular. Abdominal scales small, sub-rhomboid, acuminated. Terminal pores 

 small, not continuous across the interfemoral region. Color blackish brown above, with a double or 

 quadruple series of black, light margined spots. Beneath yellowish, unicolor, or else obscurely macu- 

 lated. — ( Girard. ) 



No* 195. Between Guadalupe mountains. Pecos. A. Schott. — Chihuahua. J. H. Clark. 



39- TAPAYA ORNATISSIMA, Girard. 



nosoma 



ornatissima 



No. 205. Pecos to Rio Grande, Texas. Dr. Kennerly. — No. 206. Janos to San Luis 



Springs. Dr. Kennerly. 



40. PHRYNOSOMA CORNUTUM, Gray. 



Agama cornuta, IIarl. J. A. N. Sc. IV, n, 1825, 299. 

 Phrynosoma cornutum, Gray, Syn. Kept. Grift'. Cuv. IX, 1831, 46. 



No. 121. Indianola, and 122, San Antonio. J. H. Clark. — No. 126. Eagle Pass, Texas. 

 A. Schott. — No. 124. Los Nogales. Dr. Kennerly. 



41. PHRYNOSOMA REGALE, Girard. 



Plate XXVIII, Figs. 1—3. 



Phrynosoma regale, Girard, Herp. U. S. Ex. Ex. 1858, 406. 



Sp. Ch. — Vertex and occipital regions quite depressed. Temporal and occipital spines flat and acute, 

 constituting a continuous series, very much inclined backwards. Labial plates proportionally well 

 developed, unequal, and rugose. Scales under the chin small, rounded, sub-convex; largest series 

 sub-pyramidal and acuminated. Pectoral scales moderate, and acuminated also. Lower series of sub- 

 pyramidal scales at the periphery of the abdomen obsoletely developed. Abdominal scales sub-rhombic, 

 not acuminated, and slightly, though distinctly, keeled. Femoral pores small and closely set together; 

 the series from either 6ide not continuous on the interfemoral region, over which they somewhat extend. 

 Post-anal scales very minute. Ground color brownish olive above, back, limbs, and tail transversely 

 maculated with black; beneath yellowish, with small black spots over the middle of the abdomen. 

 ( Girard. ) 



From the valleys of the Gila and Colorado rivers. 

 No. 161. Gila and Colorado desert. A. Schott. 



42. DOLIOSAURUS Mc'CALLI, Girard. 



Plate XXVIII, Figs. 4—6. 



Anota m&caUii, Hallow. Pr. A. X. Sc. VI, 1852, 182. 



Doliosaurus mefcallii, Girard, Herp. 1 S. Ex. Ex. 1858, 400. 



Sp. Ch. — Cephalic plates moderate. Occipital spines rather elongate I and slender. Sub-maxillar shields 

 very large; posterior ones spinous No external auricular aperture. Scales under the chin very small, 

 sub-equal, with two distant longitudinal series of somewhat larger ones. Pectoral scales large, carinated, 

 and acuminated. A triple series of sub-pyramidal scales at the periphery of the abdomen; middle one 

 alone well developed. Abdominal scales small, slightly carinated. Femoral pores extending somewhat 

 over the interfemoral region, though the series from either side are not continuous. Yellowish olive 

 above, with a dorsal black line, and a double series of rounded spots on either side of the back, uniting 

 into oik- along the tail; whitish yellow beneath, unicolor. — (Girard.) 



No. 162. Gila and Colorado deserts. A. Schott. 



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