REPTILES OF THE PACIFIC COAST. 



109 



yellow, green, brown, or almost black, with numerous 

 irregular black or dark brown cross-bands, which, how- 

 ever, usually are broken up into two lateral series of 

 vertical bars and one median series of irregular spots or 

 blotches. The ground color of the longitudinal band 



between the median and lateral dark markings is often 

 lighter than elsewhere. Most of the lateral scales occu- 

 pied by the dark bars are tipped with white. The col- 

 oration of the tail is similar to that of the back. The 

 head and limbs may be either unicolor or irregularly 

 mottled with black or brown. The lower surfaces are 

 white, yellow, green, or gray, often with dark gray or 

 slate-colored lines, which, when present, appear between 

 the longitudinal series of scales. 



The young are similarly colored, but the dorsal bands 

 are always broken and the medial spots are much smaller 

 than is usual in adults. The ground color of newly born 

 young is an iridescent bronze. 



Length to anus 27 5-2 76 88 98 99 



Length of tail 32 89 126 145 162 172 



Snout to ear 7 11 15 17 19 20 



Width of head 5 7 11 12 14 14 



Head to iuteroccipital 6 10 12 14 16 16 



Fore limb 7 12 IS 22 23 24 



Hind limb 8 16 24 30 31 33 



Base of fifth to end of fourth toe 3 6 8 11 10 12 



Distribution. — Burnett's Alligator Lizard occupies, so 



