NO. 14 MILLIPEDS OF WEST INDIES AND GUIANA LOOMIS 67 



First segment semicircular or somewhat crescentic ; with the front 

 margin transverse and sHghtly emarginate, the median third low and 

 simple, the outer third on each side occupied by three elevated lobes, 

 the outer of which is twice as broad as the two subequal inner ones 

 combined ; disk broadly depressed along the middle, finely erose- 

 granular and hispid, each side somewhat inflated and coarsely granu- 

 lar, erose, and hispid but with some of the setae longer than those on 

 the middle of the disk. 



Second segment completely concealing the first segment from the 

 side ; the median portion of the dorsum depressed, the sides somewhat 

 inflated ; sculpturing of the dorsum similar to that of segment i ; 

 expanded lateral lobes with the surface coarsely granular-erose, hispid, 

 the granulations separated into definite triangular sections by de- 



Fig. 2,2,. — Cyliocyrhis ocrcatits. a, antenna ; b, gonopods. 



pressed lines radiating from a central point of the lobe and extending 

 to the raised rim of the anterior and lateral margins of the lobe and 

 terminating in slight incisions of the rim, which give it a faintly scal- 

 loped appearance. 



Ensuing segments coarsely granular-erose and strongly hispid with 

 short and long setae intermixed, the entire surface usually with a 

 moderate incrustation of dirt which hides the pores. There are no 

 large tubercles present on the dorsum as shown in Cook's illustration 

 of C. asper. The outer margin of the keels, following the second 

 segment, is simple and sharply rounded, becoming more broadly 

 rounded on the middle segments, where it is indistinctly 2-lobed, 

 and on the posterior segments it finally becomes indistinctly 3-lobed. 

 On the anterior subsegments the dark posterior portion is uniformly 

 pitted, the surface including the pits very finely granulated ; white 

 anterior portion of the subsegment minutely honeycombed. 



