642 REPORT OF NATIONAL MUSEUM, 1898. 



Tail broken at tip, but apparently about one aud one-third times the 

 head aud body. The tail is strictly tetragonal and equilateral to the 

 end. In nearly all good specimens, however, it is cylindrical. 



In Cat. No. 31726, from same locality with the type, but of considerably 

 smaller size, there are twenty-six rows of scales around the body and 

 sixty-three from occiput to anus. The hind leg applied forward twice 

 reaches halfway between the arm and the ear, the forelegs to the gape* 

 The hind leg, from knee, is contained rather less than three and one-half 

 times in the head and body; the head to ear about five times; the tail 

 is trihedral, the base above and smaller than the sides. From this it 

 appears that the older specimens have the body proportionally rather 

 more elongated than in younger; the tail longer. 



There appears to be a considerable difference in the size of the limbs, 

 especially the hinder. This is smaller in the type of Dr. Hallowell's 

 Eumeces quadrilineatus than in most other specimens. The head never 

 appears to become very broad, not exceeding two-thirds the length 

 to ear. 



The prevailing color of this species is a greenish olive above, with four 

 white or greenish -white stripes, the space between the two lateral 

 black, the upper stripe bordered internally with black. The strij)es on 

 the back are separated by an interval one and one-half times that 

 between the two lateral. On the back are two central rows of scales 

 of the ground color, each sometimes with a narrow i^osterior border of 

 dusky or black. The white stripe on either side occupies the outer 

 third (or angular i^ortion) of the adjacent row of scales, and the inner 

 half of the next outer (or of the third from the median line) the inner 

 half of the second row from the median line black, forming the line just 

 mentioned. The black lateral stripe occupies 21 scales on the sides, 

 succeeded interiorly by a white stripe two half scales wide, or rather 

 on the lower third of one row and the upper half of the next. Between 

 the centers of the two lower lateral stripes on either side there thus 

 intervene twelve rows of scales. The under parts are of a light salmon 

 color, the belly and sides of the body dull bluish. 



Another specimen (Oat. No. 3131) has the lower lateral stripe on one 

 row higher up, leaving but If in the dark part, or ten from its middle to 

 that of the fellow across the back. There are but twenty-four rows of 

 scales around the body. Here, as in the other, the upper white stripe 

 begins on the canthus rostralis, just behind the nostrils but rather 

 indistinct to above the eye. The second begins along the upper labials 

 and runs back through the ear, and above the insertions of the limbs. 

 Both are quite distinct on the "tail, where this has not been reproduced, 

 the ground color being rather bluish. 



With advancing age the clearness of the markings disappears, and 

 there is at first only a line of black spots on the back on the inner half 

 of the second row of scales from the middle of the back, two full rows 

 intervening between the two. This is a remnant of the black border- 



