lOG Warren — ^Nev ChipTiVHuk from Colorado. 



possession are so much paler than a large series of typical quadrivittatus 

 that there is no comparison to be made between them. 



There are no cranial characters to distinguish it from quadrivittatus. 



Color. — All colors pale. Inner pair of light stripes grayish white, outer 

 pair quite clear white. Middle dark stripe narrow, blackish, j^ale chest- 

 nut or rufous bordered. Inner pair of dark stripes rather pale chestnut 

 rufous, darkest posteriorly, with a little blackish ; outer pair a pale shade 

 of the same, not very distinct from the color of the sides, which are pale 

 yellowish rufous. Post-auricular si:)ot large and whitish. Top of head 

 and shoulders quite gray. Dark facial stripes narrow and blackish, not 

 clearly black. Flanks grayish. Upper surface of tail with less black and 

 more rusty than in typical quadrivittatus, under surface of tail pale bright 

 rufous, not the dark chestnut of quadrivittatus. 



Measurements. — Type specimen : Total length, 247; tail vertebrae, 115; 

 hind foot, 37. A male topotype measures 247 ; 105; 35. 



