232 LIZARDS OF THE PHILIPPINE ISLANDS 



scales about middle of body, all smooth ; preanal scales somewhat 

 enlarged; scales on underside of tail slightly larger than those 

 above; limbs rather small; fourth toe only a little longer than 

 third, thirteen lamellae under fourth toe; tail thick, tapering 

 very gradually; eye nearer end of snout than ear; latter nearer 

 insertion of foreleg than end of snout; adpressed limbs fail to 

 meet by a considerable distance. 



Color in life. — Above yellowish to dark brown, the scales on 

 each dorsal row with black spots, forming more or less regular 

 longitudinal dark lines; a broad black line begins behind eye 

 and continues above limbs to some distance on tail; scale row 

 above the black line lighter than ground color; below the black 

 line, other indistinct lines of brown with numerous distinct 

 yellow punctations and occasional scales of reddish brown; 

 below orange to pink; rather pinkish in groin; a distinct white 

 line along upper labials. 



Measurements of Riopa bowringii {GiXnther) . 



Total len^h, extreme tip of tail regenerated 



84.5 



Snout to vent 



42 



Snout to foreleg 



15 



Axilla to groin 



25 



Tail 



41.5 



Width of head 



5.1 



Length of head 



7.2 



Foreleg 



10 



Hind leg 



12.7 



Variation. — Five other specimens from the Sulu Archipelago 

 are in the collection. They agree with the above description 

 with a few exceptions; one specimen has two pairs of nuchals, 

 another has the frontoparietals fused. All save the one de- 

 scribed have twenty-eight scale rows. A younger specimen in 

 the collection is olive brown above. None shows evidence of 

 carinations on the scales. 



Remarks. — These specimens of Riopa bowringii (Giinther) 

 are the first recorded from the Philippines. The occurrence of 

 this species is hardly a matter for surprise, since de Rooij has 

 identified Mocquard's Lygosoma whiteheadi from North Borneo 

 as a synonym. 



The specimens obtained in the Sulu Archipelago are from the 

 following islands: Siet Lake, Jolo, two specimens; Lapac, one 

 specimen ; Bongao, one specimen ; Simonor, one specimen ; Tavd- 

 tawi, one specimen. Also known from several localities in 



