5:]1 



The Philippine Journal of Science 



markings and appears to be smaller. There are fewer super- 

 ciliaries; the anterior loreal is much higher than the second one; 

 the interparietal is much smaller, not separating parietals and 

 partially fused with them. 



The present species was found to occur from Baguio, along 

 the Mountain Trail, to northern Kalinga. It is probably con- 

 fined to the plateau and mountain region of northern Luzon. It 

 is not uncommon, and specimens were seen moving about on the 

 cliffs that border the trail. 



In a previous work 10 I mention a young specimen collected 

 in Baguio; this is No. 350, listed in the table. 



. Gray. 



tingii Gray, Cat. Liz. (1845) 93; Taylor, Lizards of the 

 slands (1922) 163, pi. 13, fig. 2, and text fig. 16. 



Three specimens of this large skink were collected; two on 

 Calotcot, a small island in the Polillo group, and one on Mount 

 Maquiling, Laguna Province, Luzon. 



The Calotcot specimens were shot from forest trees, one spec- 

 imen at an elevation of about 13 meters. Others were observed 

 in trees. Nowhere else have I ever found this species in trees, 

 as it is, in localities where I have previously collected it, terres- 

 trial in habit and lives for the most part under rocks and in 

 holes in the ground. It will be noted, from the table herewith 

 given, that the Luzon specimen, like those from Bataan Prov- 

 ince, Luzon, 11 has a much higher average of scale rows than 

 have those from Calotcot and Mindanao. With larger series it 

 may be possible to separate this form having the high scale 

 count from the typical one. 



Measurements and scale 



of Otosaurus cumingii Gray. 



