202 



NCRTH AMERICAN FAUNA. 



[No. 7. 



in the other (No. 18599) the longitudinal stripes are quite visible, though 

 the ground color is nearly the same; the former lias the head greatly 

 swollen at the temples and has 24 rows of scales round the middle of 

 the body, while the latter lias the head narrow and 26. scale rows; more- 

 over, in the former the limbs are overlapping when pressed against the 

 body, a character relied upon by Boulenger for separating E. sTciltoni- 

 anus, etc., from 22. leptogramm us, while in thelast mentioned specimen the 

 limbs do not meet by the length of several scales, in the latter character 

 agreeing with No. 18600 from the Panamint Mountains. Both specimens 

 from Old Fort Tejon are uniformly brownish-gray, one (No. 18003) con- 

 siderably paler than the other, both with swollen temples. No. 18001 

 is colored like the latter, but has a very long tail, and has, moreover, 

 the frontal in contact with the azygos prefrontal. 



All the specimens have two azygos postmen tnls, but in the collection 

 of the National Museum there is plenty of material to show that Bo- 

 court's Eumeces hdllowelli, the distinguishing character of which is the 

 single postmental, is nothing but an individual variation of E. slcil- 

 tonicmus. 



It is interesting to note that E. slciltonianus, as it grows old, is sub- 

 ject to the same swelling of the head at the temples and the concom- 

 itant disappearance of the striped pattern as well as the loss of the 

 blue color of the tail, as Eumeces fasciatus. 



A glance at the subjoined list of specimens shows that the expedi- 

 tion has materially extended our knowledge of the geographical dis- 

 tribution of this species, all the specimens previously recorded having 

 been obtained within the Pacific slope, while now we have specimens 

 both from the Argus Kange and the Panamint Mountains. It is evi- 

 dent, however, that it is not a species of the desert plains or valleys. 



[Specimens of this small lizard were obtained in the Panamint and 

 Argus ranges in the Great Basin, and in Kern Eiver Valley and the 

 Can-ada de las Uvas (near Old Fort Tejon) on the coastal slope of the 

 Great Divide in California — C. H. M.] 



List of specimens of Eumeces slciltonianus. 



U.S. 

 Nat. 

 Mus. 

 No. 



Sex 

 and 

 age. 



Locality. 



Alti- 

 tude. 



| Feet. 

 18598 \ ad. : Argus Range, Maturango Spring, | 



Calif. 



J8599 ! ad. i do j 



18600 I adol. : Panamint Mountains, head of Willow j *7, 000 



Creek, Calif. 

 18G01 j ad. ! Kern River, 25 miles above Kernvillo, ! 



Calif. 



18602 J juv. ! Soda Springs, North Fork Kern "River, j 



Calif. 



18603 ad. i Old Fort Tejon, Calif 



18604 ad. ! do I ." 



Date. 



Collects-. 



May 8 Fisher . 



May 3 i do .. 



May 10 ! Nelson. 



July 4 i Fisher . 

 Aug. 15 | Bailey . 



Remarks. 



July 5 | Palmer j 



July 8 do _ 



*About. 



