548 PROCEEDINGS OF THE ACADEMY OF [Aug., 



on one side. At present this rather rare form seems to be amply sepa- 

 rated by color characters. 



Cnemidophorus tessellatus (Say). 



Two specimens of the color form noted by Cope as C. t. tessellatus 

 were received in May, 1903. The largest measures 268 mm. (tail 178). 

 They correspond closely with Cope's description, but one has the 

 femoral pores 24, and the other 25, as against the maximum of 21 given 

 by him. The brachials are in from four to seven rows. Both have 

 round dark spots under the jaws, and in one the belly is tinged with 

 orange. The hind leg reaches the eye or a little less. 

 : A large series in the Academy's collection, secured by Messrs. Rehn 

 ^-nd Viereck at Alamogordo, New Mexico, in 1902, shows no important 

 variations from the Pecos specimens. Femoral pores 22-25, average 

 9f fifteen 23. ,], 



Cnemidopliorus gularis B. & G. 



Five examples from the Davis Mountains, south of Pecos, the largest 

 of which measures 240 mm. (tail 142), have femoral pores 15-17; 

 brachials in 4-5 rows; antebrachials 3-4; femorals 6; tibials 3. The 

 hind limb is short, reaching only to the shoulder. There is a row of 

 white spots in each dark stripe, but these do not merge into the light 

 interspaces. There is a light dorsal area resembling but narrower 

 than that of C. s. sexlineatus. Some examples in juvenile pattern 

 much resemble that species in this respect, while in others the light area 

 is represented by two narrow lines corresponding to its outer borders, 

 but gularis may always be distinguished by the large scales under the 

 forearm. Cope gives the femoral pores as 18-22, whereas, in a con- 

 siderable series from Texas and New Mexico, I find but one with the 

 number as great as Cope's minimum. They range from 15-18, with an 

 average of 16. 



. While sexlineatus and gularis have doubtless had a common origin, 

 the differentiation reached in adults is great, and I cannot regard the 

 occasional retention of the earlier style of color marking by the yoimg 

 of gularis as true intergradation. 

 Eumeces obsoletus B. & G. 



Three have been received from Pecos. I have also two from Sey- 

 mour. 



OPHIDIA. 

 Glauconia dulcis (B. &G.). 

 Eutsenia proxima B. & G. 



One specimen from Pecos measured 1,160 mm. (tail 280). This is 

 the largest I have met with. 



