222 DR. MALCOLM SMITH ON 



bark of decaying wood. One specimen is pale grey in colour above, 

 almost uniform, the dark cross bands being hardly distinguishable. It 

 appears to be abnormal. 



Lygosoma koratense, sp, nov. 



Diaiinosis. flection Liji/o.-^oma. Body elongate ; limbs short but 

 well developed, widely separate when adpressed ; ear opening distinct ; 

 two frontoparietals. 



Nea.v to Lifijnso-ina isodaeti/liim Giintiiev, fvom Siam and Indo- 

 China, from which it differs in the much stouter build, in possessing 

 two frontoparietals, in the character of the ear-opening, and in coloura- 

 tion. 



Description. Snout obtuse, lower eyelid scaly, ear-opening small, 

 oval, half the size of the ej^e-op suing, with projecting lobules anterior- 

 ly. Nostril batween two shields, a large superior-anterior and a small 

 posterior-inferior ; no supranasals. Itostral convex above ; nasals 

 forming a median suture ; frontonasal luucli broader than long, form- 

 ing a broad suture with the frontal ; praefrontals small aiul widely 

 separate; frontal not very narro.v bjliinl, equal to or lunger 

 than the frontoparietal and interparietal together. Four large 

 supraoculars ; two frontoparietals ; the parietals in contact ; no 

 nuchals. Fifch and sixth supralabials subocular. Body elongate; 

 distance between the end of the snout and the foreliml) twice 

 in distance between the axilla and groin. 32 to 31 smooth 

 scales round the middle of the body, subequal. No enlarged 

 praeanals. Digits short, fourth toe a little longer than third ; 13 to 14 

 keeled lamellae beneath the fourth toe. Tail thick, about as long as 

 tlie head and body. 



Colour ( in life ). Reddish-brown above, each scale tipped with 

 black ; flanks pale greenish yellow, the scales tipped with black as on 

 the back, the colour sometimes extending to the base of the adjacent 

 scales. Below yellowish wiiite. Head scales each with one or more 

 central black spots. Lips yellowish with large black spots. 



PiidCHsions. Head and body, 10.") ; tail (reproduced ) 05 : fore- 

 limb, 15 ; hind limb, 21 mm. 



'J'ype locjiliitj. Lat I3ua l\ao, near Korat, E. )Siani, on the 

 eastern slopes of the Dong Rek Mountains. 



JOIKN. NAT. III.-<T. SOr. SI.\.M. 



