DUTCH BORNEO-EXPKDITION. 201 



praefrontals form a suture together; in the largest one 

 there is no suture to be seen between the parietals situated 

 behind the interparietal. They all have a large azygos 

 postraeutal, followed by three pairs of large postmentals, 

 the shields of the first two pairs in contact over their 

 whole length, those of the third pair separated by four 

 much smaller scales. 



37. Tropidophorus micropus, no v. spec. 



Habit slender. Head-shields strongly striated. Snout long, 

 pointed. A single frontonasal as long as broad. Two fron- 

 tonasals forming a short suture before the frontal. Frontal 

 longer than the frontoparietals and the interparietal toge- 

 ther, in contact with three of the four supraoculars. Seven 

 supraciliaries, first and second large, the others very small ; 

 no supraciliaries below the fourth supraocular. 



.Frontoparietals somewhat smaller than interparietal ; pa- 

 rietals forming a suture behind interparietal. Fourth upper 

 labial largest, with a groove running from the lower 

 posterior corner diagonally to the higher anterior corner 

 of this shield, which borders the eye. Tympanum broadly 

 oval, larger than the eye-opening. 34 scales round the 

 middle of the body, six longitudinal series of strongly keeled 

 dorsals ending in a sharp point, lateral scales smaller, 

 keeled in oblique series, ventrals in 6 series, smooth, as 

 large as the scales on the middle of the back, larger than 

 the lateral scales. The scales below the head smooth, those 

 below the neck keeled, except the scales of the two middle 

 rows. Scales of the tail all keeled, except the middle series 

 of broad shields which are smooth. A single large praeanal 

 scale. One azygos postmental followed by three pairs of 

 large postmentals, the shields of the first and of the second 

 pair in contact with each other, those of the third pair 

 separated by four scales. Limbs slender ; the distance between 

 the posterior part of the eye to the fore limb much longer 

 than the length of the fore limb. 



The distance between the tip of the snout and the 

 fore limb nearly as long as the distance between fore- and 



Notes from the Leyden Museum , Vol. XXV. 



