TROPIDOPHORUS 239 



scales by a single row of small scales, smaller than the posterior 

 supraciliaries ; four lower labials, first very small, second and 

 third excessively elongate, together nearly as long as five supra- 

 labials; a large unpaired postmental followed by three pairs 

 of large submandibulars, the two anterior pairs of which are 

 in contact on the middle line; ear-opening oval, slightly smaller 

 than eye-opening ; 32 scales around the middle of the body ; nine 

 dorsals in the shielded part of the head; dorsals and laterals 

 strongly keeled and on the posterior half of the body strongly 

 mucronate, the keels of the dorsals forming six straight lines on 

 the back, the laterals forming numerous oblique lines converging 

 toward the sacrum ; ventrals smooth, much smaller than dorsals, 

 about fifteen in a head length ; a single very large preanal plate ; 

 legs covered above with strongly keeled and mucronate scales; 

 third finger nearly as long as fourth; subdigital lamellae smooth, 

 24 under the fourth toe; extended hind leg reaches beyond the 

 elbow; tail slightly compressed with six series of very strong 

 mucronate keels at base, this arrangement soon giving way to 

 a mass of high, nearly vertical spines, each one occupying the 

 whole scale, and all nearly the same size, there being no pro- 

 nounced serial nor verticillate arrangement; tail underneath 

 with a series of smooth, wide plates, on each side with a single 

 series of mucronate scales; length of tail not one and one-half 

 the length of the body." 



Color in alcohol. — ''Above vandyke-brown more sooty on the 

 sides, with about eight irregular and more or less interrupted, 

 narrow, pale cross bars; tail with indications of similar pale 

 cross bars; fingers and toes with distinct cross bars of dark 

 and pale brown of about equal width; head above and on sides 

 uniform glossy brown; throat and lower neck more grayish 

 brown, a narrow pale line crossing the commissure from the 

 third supralabial and another from the fifth across the sub- 

 mandibulars to the throat; underside of abdomen, legs, and 

 basal portion of tail pale, the terminal two-thirds dark brown 

 like the upper side; scale-row nearest subcaudals pale, form- 

 ing a pale line on more than basal half of tail." 



Measurements of Tropidophorus partelloi Stejneger. 



mm. 



Total length, tip of tail regenerated 212 



Snout to vent 105 



Snout to ear opening 25 



Width of head 19 



Vent to tip of tail 107 



Foreleg 34 



Hind leg 46 



