Batrachians and Reptiles from Perak. 191 



Several specimens were obtained in the Larut Hills by 

 Mr. A. L. Butler at elevations varying between 1500 and 

 3000 feet. 



Intermediate between 1). Blanfordii, Blgr., and D. tcenio- 

 pterus, Gthr. D. Blanfordii occurs also in the Larut Hills. 



Lygosoma prcesigne. 



Section IJinu/ia. Habit lacertiform ; the distance between 

 the end of the snout and the tore limb is contained once and 

 a half in the distance between axilla and groin. Snout 

 short, obtusely pointed. Lower eyelid scaly. Nostril pierced 

 in a single nasal ; no snpranasal ; rostral forming a straight 

 transverse suture with the frontonasal, which is broader than 

 long ; prefrontals forming a median suture ; frontal very 

 narrow behind, as long as frontoparietals and interparietal 

 together, in contact with the three anterior supraoculars; 

 four supraoculars, followed by a very small fifth ; nine or ten 

 supraciliaries, first and last largest ; frontoparietals and inter- 

 parietal distinct, latter longer than former ; parietals forming 

 a very short suture behind the interparietal ; three pairs of 

 nuchals ; fifth upper labial below the centre of the eye. Ear- 

 opening oval, nearly as large as the eye-opening ; no auri- 

 cular lobules. 28 smooth scales round the middle of the 

 body ; dorsals largest, especially those of the two median 

 series, which are more than twice as broad as long. A pair 

 of enlarged prseanals. The hind limb stretched forwards 

 reaches the elbow of the adpressed fore limb. Digits rather 

 long, compressed ; subdigital lamella? smooth, 20 under the 

 fourth toe. Reddish brown above, with scattered black dots, 

 grey on the sides, spotted with black and white ; a series of 

 large roundish black spots on each side of the neck on ante- 

 rior part of body ; lips spotted with black ; tail black above 

 and on the sides, with irregular annuli of whitish scales ; 

 lower parts white. 



millim. 



Total length 240 



Head 25 



Width of head 17 



Body 85 



Fore limb 34 



Hind limb 47 



Tail (reproduced) 130 



A single specimen from the Larut Hills at 4000 feet. 

 Selangor Museum. 



