CROCODILIAN^, LIZARDS, AND SNAKES. 

 Holhrookia maculata maculata — Continued. 



297 



/. * 1 „ .„' Number 

 Catalogue,, ^^^^^^,_ 



4867 

 8524 



5055 



9365 

 8182 

 6277 

 9367 

 8636 

 8637 

 9283 

 9631 



9632 

 2809 

 2773 



2798 

 2667 



2662 



14749 



17559 



21259-65 



Locality. 



Fort Kearney to Lara- 

 mie, Nebraska. 



Nebraska 



Colorado Springs, Colo- 

 rado. 



Platte Vallev 



Fort Bridger, "Wvoming 



Utah -■■ 



(?) 



When 

 collected. 



July — , 1874 



(?) 



atah 



Dome Canyon, Nevada.. —,1872 



Fort Tejon, California 



Colorado Chiquita, Now July 30, 1872 

 Mexico. 



Apache, Arizona — ,1872 



Santa Rita 



lied River Exp 



Platte River . 

 Sonora 



From whom received. 



Dr. J. G. Cooper . 



Dr. W.L.Jones. 

 John Yarrow . . 



Capt. J. H. Simpson, 

 U. S. A. 



C. Drexler 



Exp. AV. lOOM 



(?) 



Nature of 

 specimen. 



Dr. H. C. Yarrow . 

 do 



San Pedro, Texas , 



Fort Huachuca, Arizona , 

 Fort Supply, Oklahoma. . 

 Long Pine, Nebraska... . 



Dr. C. G. Newberry. . . 



H. W. Henshaw 



Dr. Thos. Webb 



Capt. R.D. Marcy.U. 



S.A. 



Col. J. D. Graham, U. 



S.A. 

 do 



Lieut. H. C. Benson . . . 



Dr. T. E. Wilcox 



U. S. Fish Commission 



Alcoholic. 



do. 

 do. 



do. 



do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 



do. 

 do. 

 do. 



do. 

 do. 



do. 

 do. 

 do. 

 do. 



HOLBROOKIA MACULATA APPROXIMANS Baird. 



Holhroohi maculata approximans Baiiid, Proc. Acad. Nat. Sci. Phila., 1858, p. 

 253.— BOCOURT, Miss. Sci. Mex., 1874, p. 163. 



Body squat, depressed. Tail shorter than body. General form of 

 H. maculata. Head swollen, as broad as long; i^rofile very convex. 

 Upper labials, six. Large plates on temples, smaller than those mar- 

 gining lower labials behind, the labials thickening. Scales rather 

 large; about one hundred and thirty from head to above anus; largest 

 in middle of back. Femoral pores about thirteen. 



Above ashy brown. Back with ten dorsal (and sometimes an obscure 

 lateral) series of nearly equidistant angulated blotches, seven to ten 

 from head to above anus, and continued above the tail, the lower 

 surface of which is plain. Sides and sometimes fore part of back 

 rather thickly crowded with whitish spots. No indications of light lines 

 on sides of neck and back. Beneath whitish; the sides of the belly 

 with a light blue patch, in which are situated ten transversely elon- 

 gated indigo-black blotches, which do not extend into the dark part of 

 the sides and are entirely visible from below. The middle line of the 

 sides falls between the ten blotches. Faint traces of a third more pos- 

 terior are occasionally visible. Female with the indigo blotches and 

 blue patches less prominent. 



This subspecies is most similar to H. m. maculata, but is considerably 

 larger and has the head wider, still more convex. The scales are rather 

 larger. The feet are of about the same proportional length. The spots 

 on the back are quite distinct, with a light areola. Behind they are 

 irregularly U - or W-shaped. There is a decided indication in most speci- 



