516 MR. E. I. POCOCJE OK THE 



sculpturing of the dorsal surface, which calls to mind that of the 

 genus Polydesmus (s. s.). Another noticeable feature is the pre- 

 sence of the large spiniform tooth on the posterior border of the 

 lieel at its base. 



Odontopeltis veeefcosus, sp. n. (PI. XXXIX. figs. 6-6 d.) 



Colour : head and upper portion of cylindrical part of segments 

 chocolate-brown, the rest of the body (i. e., antennae, legs, sterna, 

 keels, and keel-bearing part of somites) yellow. 



Antennce elongate, the second to the fifth segments subeq^ual 

 in length and thickness, the sixth the longest. 



First tergite about as wide as the second, thickly granular 

 throughout, its anterior border evenly convex, the posterior 

 straight from side to side although lightly sinuate, the lateral 

 portion upturned and carinate, the posterior angle squared and 

 sharp. In the rest of the somites the cylindrical part is smooth, 

 the posterior and cariniferous part thickly granular, with a series 

 of six larger granules along the posterior border, and obscurely 

 impressed transversely in the middle. The keels well-developed, 

 horizontal, rising at the summit of the sides, the anterior border 

 convex, the posterior correspondingly concave ; the posterior angle 

 acute and dentiform, projecting far beyond the hinder border 

 of the tergites, at least in the posterior half of the body ; the 

 posterior border bearing a conspicuous tubercle near the point 

 of origin of the keel, the rest of the hinder border denticulate ; 

 the lateral border dentate and denticulate ; the keels that bear 

 pores furnished with a strong median notch. The pores lateral but 

 looking slightly upwards, situated in a depression in front of 

 the posterior angle ; area below the keels granular ; granular 

 crests above the legs at the anterior end of the body. The anal 

 tergite narrowed, but truncated apically, furnished apically with 

 two piliferous tubercles and laterally with others. Sternite 

 triangular, the two tubercles situated in front of the posterior 

 margins. Sterna wide, smooth, and not spined. Legs elongate 

 and closely hairy, the 1st, 2nd, 4th, and 5th segments about 

 equal in length, also the 3rd equal to the 6th and as long as two 

 of the others. 



S . Slenderer than female, with keels a little more elevated, 

 the sternum of the 4th and 5th somites bearing two hairy 

 tubercles. 



Copulatory feet short, robust, contiguous but not crossing ; 



