1885.1 ' ' ' I Cope. 



which is higher than long, and projects at an angle between two preocu- 

 lars. Of these the superior is large and extends partly over the eye, leaving 

 only three narrow superciliaries. There are four well-developed supra- 

 orbitals. The large internasal is about as wide as long. The frontonasals 

 are well in contact by suture. The frontal is considerably longer than 

 wide, as are also the frontoparietals. The interparietal is large, as wide 

 as long, and would be a regular hexagon, but that the posterior border is 

 rounded. The parietals are much smaller and trapezoidal, and longer 

 than wide. No occipitals. Temporals small, squamous. Superior labials 

 seven, separated from the orbit by a row of narrow suborbital scales. 

 Inferior labials five. A symphyseal and an undivided postsymphyseal. 

 Four infralabials, of which the first two are in contact, and the last two 

 separated by flat scales, the fourth truncate posteriorly ; no distinct pec- 

 toral scales. 



The limbs are slender ; when pressed to the side, the fingers reach to 

 the middle of the tibia, and the toes to a little beyond the elbow. The 

 toes themselves are weak and slender. The first digit is rudimental, and 

 the second and fifth are very short, and of subequal length on the fore 

 foot ; and on the posterior foot, the second is a little the longer. The 

 third digit is shorter than the fourth on both feet. They are all protected 

 by a single row of flat scales below. The femoral pores extend entirely 

 across in front of the anal scuta ; there are ten on each side of the middle 

 line. Of anal scuta there are six, arranged as follows : Two small ones on 

 the middle line, one of which is marginal, and the other anterior to it ; 

 one large one on each side of these, also marginal ; and a small one on the 

 external side of these, also marginal. 



Color, brown ; dark above, pale below, darkest on the sides. The exact 

 color is probably lost, as the specimen is not in the best condition. Side 

 of head with some yellow spots. Lips and throat white, the former with 

 a dark brown spot on some of the labial scuta. 



Measurements. M. 



Length from muzzle to vent . . , 032 



" " " to axilla 015 



" " " to auricular meatus 0075 



"Width at auricular meatus 005 



Length of fore limb 0105 



" hand 0035 



Length of hind limb 0145 



"tibia 0048 



"foot 0056 



Leposoma picticeps, sp. nov. 



Dorsal scales very narrow, in regular cross-series, the acute extremities 

 of those of one row alternating with those of the rows in front and pos- 

 terior ; each with a strong epidermal keel which is represented by a weak 

 one of the true skin. These scales commence at the interparietal plate, 



