CROCODILIANS, LIZARDS, AND SNAKES. 643 



iiig inteiDally tlie upper white stripe, which is faiutly traceable. Then 

 comes a dnsky lateral stripe, each scale, however, with a little olive at 

 the base. The lower white stripe is very faint. This is the coloration 

 in the type specimen Cat. No. 3172cf. In the largest specimen, Cat. No. 

 3181^f, the upper ])arts are entirely uniform olive, lighter than in the 

 young, the four and live rows from the middle of the back having the 

 scales edged slightly with brown. The middle row of large scales 

 beneath the tail is plain light-salmon color, the line connecting it with 

 the adjacent rows dusky. In old specimens the limbs are shorter, rela- 

 tively, than in young ones. In the latter, when appressed to the sides, 

 they touch or overlap a little, but in old and large ones they may be 

 separated by a space equal to the length of the hand. 



Var. amhlyo,yammus. — A S[)ecimen from Fort Humboldt (Cat. No. 1G6) 

 differs from others before me from California in having the dorsal inter- 

 space uniformly and continuously black as well as the sides; the four 

 bluish-white stripes are very sharply defined, the upper from the nostril. 

 The upper lateral stripe occupies the adjacent two-thirds of the second 

 and third rows of scales from middle of back and is half as wide as the 

 black dorsal interspace. In all other specimens the upper light stripe 

 occupies at most only adjacent halves of scales, usually only adjacent 

 thirds (especially above), and the width is one-half the dorsal band, 

 which is always olive edged with black, 



I have seen the Eumcces sMltonianus from Cape St. Lucas, Lower 

 California, on the south, to near the Canadian boundary on the north. 

 It is quite abundant and is active in its movements, frequently expos- 

 ing itself in the open sunshine. 



Dr. Merriam notes in his report on the Death Valley expedition that 

 "specimens of this small lizard were obtained in the Panamint and 

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

 Canada de las TTvas (near old Fort Tejon) on the coastal slope of the 

 Great Divide in California." 



Var. hrevipes. — In a large and probably old specimen (Cat. No. 12558) 

 there is but one mental ])late, and the limbs are considerably shorter 

 than in the adult of the typical form. The color is also modified in a 

 way which is different from that seen in otiier adults. Additional 

 specimens are necessary to determine the (piestiou of the rank of this 

 form. It diverges, however, so widely from the normal that I describe 

 it under a distinct name. 



The limbs, appressed to the sides, do not meet by a space equal to the 

 length of the forearm and hand, which is more than double the space 

 between the limbs in the adults of the typical variety. The hind limb 

 is one-third the length from the groin to the end of the muzzle. The 

 tail is unusually robust, but the extremity is lost in the specimen. In 

 coloration the dorsal ten rows of scales are all alike, dark olive, bor- 

 dered with brown. There is a pale spot on the outer border of the 

 scales of the third row from the median line on each side, which gives 



