440 Mr. R. T. Pocock on East- African Millipedes. 



dirty white, posterior portion quite black ; head and antenna 

 paler than posterior half of segments, sometimes brownish 

 red ; legs and anal somite reddish or yellowish brown. 



Head densely punctured, though much more coarsely above 

 than below ; irregularly impressed above the labial border, 

 frontal sulcus distinct ; labial excision deep, the tooth large. 



Eyes furnished with about 44 ocelli arranged in 6 trans- 

 verse rows. 



Antennce punctured, moderately long, slightly incrassate, 

 the second segment a little the longest, the segments strongly 

 narrowed at the base. 



First tergite densely punctured and rugulose, with a row of 

 cariniform teeth along its hinder border ; laterally these pass 

 into a series of (6) oblique ridges, which traverse the side of 

 the segment ; this lateral portion evenly narrowed, with 

 straight anterior border, obtuse anterior angle, and rectan- 

 gular hinder angle. The rest of the terga with the posterior 

 part sharply marked off from the anterior, the sulcus being 

 very deep ; the posterior part ornamented with a series of 

 close-set, smooth, posteriorly dentiform, longitudinal keels, 

 running from tlie base of the legs up to the summit; these 

 keels become smaller, more dentiform, or even tubercular on 

 the infero-lateral parts of most of the segments, but at the 

 anterior extremity of the body they are stronger below than 

 above ; these keels are not always even, some being some- 

 times rather shorter than the others ; keels vary in number 

 from about 33 to 37 on each side, making a total average of 

 about 70. Anterior part of segment in the middle of the body 

 closely and finely punctulate above, rather more coarsely below; 

 in the anterior part of the body the sculpturing of this half 

 becomes coarser and coarser, and there is a fine transverse 

 rid g just in front of the groove. 



Sterna strongly sulcate transversely ; a fine fringe running 

 along the posterior border of the terga. 



Anal somite not carinate, densely granular ; no caudal 

 process, the border of the tergite evenly convex ; valves with 

 a strong keel on each side of their suture, running from 

 summit to base ; sternite transverse. 



Legs of medium length ; each segment furnished below 

 with one or two apical setse, and a few shorter ones behind 

 them ; setse stronger on the anterior legs. 



Segments 1 to 3 open below, each with a pair of legs ; the 

 fourth without legs, its two sides united in the middle line 

 below. The generative ducts, at least in the male, opening 

 upon two small processes lying behind the second pair of legs 

 at their base. 



