532 The Philippine Journal of Science 1923 



dorsal and nuchal crests is distinct, although the crests are very 

 low. There is a distinct dorsolateral row of tubercular scales 

 on the back paralleling the dorsal crest ; on the sides there are 

 several enlarged tubercles arranged in irregular transverse rows. 

 The color in life was brownish red above extending low on the 

 sides. The top of the head was brick red; the labials and the 

 area below the eye yellow-green ; the tympanum bright yellow ; 

 the bars crossing the head yellow; the marks on the back dull 

 yellow to olive ; the bars on the tail gray. 



It would appear that certain specific characters of Peters's 

 Gonyocephalus semperi are incorporated in this specimen. Un- 

 fortunately, the species is rare, and it is very difficult to obtain 

 large series from the various islands. It may be that this and 

 Peters's species will have to be united. 

 Mabuya bontocensis sp. nov. 



Type.— No. 696, E. H. Taylor collection; collected along the 

 Mountain Trail, Bontoc Subprovince, Mountain Province, April, 

 1920, by Edward H. Taylor. 



Description of type. — Rostral visible above, much widened at 

 its base ; internasals small, widely separated ; frontonasal longer 

 than wide, forming a curved suture with rostral; prefrontals 

 rectangular, placed diagonally, separated medially; frontal 

 elongate, more than twice as long as broad, distinctly longer 

 than its distance from end of snout, in contact with frontonasal ; 

 frontoparietals distinct, small ; interparietal very small, scarcely 

 longer than wide, partially fused with parietals ; latter very much 

 broader than deep, followed by a pair of nuchals equally broad 

 and only slightly shorter; nostril in a single nasal, separated 

 from supranasal and first labial by only an extremely narrow 

 rim of the scale ; no postnasal ; two loreals, the anterior higher 

 but smaller than the second ; latter followed by two suboculars ; 

 four superciliaries ; four supraoculars, the first small, the second 

 very large forming a suture with prefrontal, separating first 

 supraocular from frontal; third and fourth small, not touching 

 frontal ; four subequal labials in front of the large labial under 

 eye which is four or more times as. long as high ; subocular fol- 

 lowed by a single small labial; latter separated from parietal 

 by two slightly enlarged temporals ; posterior temporal series not 

 or scarcely larger than body scales ; anterior edge of nostril on a 

 line with the suture formed by rostral and first labial; mental 

 large, followed by large postmental ; six lower labials ; two pairs 

 of chin shields, first pair in contact, second pair not or but slightly 



