No. 1810. DESCRIPTIONS OF NEW MILLIPEDS—COOK. 155 



First segment with the thickened anterior edge slightly emarginate 

 near the somewhat rounded lateral angle, and limited by a deep, 

 slightly sinuate groove. Posterior edge not emarginate, marked 

 with three or four short strictions like those of the other segments. 



Segments of middle of body with no distinct constriction. Fore- 

 belt with very fine, indistinct striations not extending beyond the 

 anterior suture except below. Midbelt and hindbelt nearly smooth, 

 the hindbelt not thickened nor convex. Posterior and median sutures 

 indicated by very fine superficial striations, especially the median. 

 Ventral striations very few and remote, not ascending more than 

 half way to the pores, even on posterior segments. The surface 

 is very prominent below each of the first four or five striations and 

 the angle of the prominence is produced into a sharp upcurved 

 spine, especially on the segments behind the middle of the body. 

 The spined striations are interrupted at the posterior suture instead 

 of passing over to join a reticular ornamentation of the midbelt 

 as in Eurelus. Only the pleura? have the fine close longitudinal stria- 

 tions of the usual sort. 



Repugnatorial pores very minute, set in distinct depressions 

 above the middle of the segments, distinctly behind the posterior 

 suture, and unusually close to the margin of the segment. Lateral 

 suture usually indicated by a very fine groove behind the pore; seldom 

 indicated on midbelt but very distinct on forebelt and interrupting 

 the concentric striations. 



Supplementary margin short, minutely pectinate along the edge. 



Pleural suture very distinct along the forebelt and midbelt, not 

 indicated on the hindbelt; surface of pleurae with very obscure, 

 transverse striae and reticulations in front, longitudinally striate 

 behind. 



Sterna quadrate, scarcely broader than long, but the sutures dis- 

 tinctly excurved near the anterior corners ; rather closely covered with 

 obscure striations. Spiracles situated in front of a small depression. 



Last segment very short, the broadly rounded apex distinctly 

 exceeded by the very convex anal valves. 



Males with claws of the anterior legs distinctly reduced, but the 

 first two pairs with strong claws. 



Coxae of third pair of legs of male with large strongly chitinized 

 processes abruptly geniculate near the base and then prolonged into 

 a recurved falcate armature. 



Coxae of legs 4, 5, and 6 with large flattened obliquely truncate 

 processes, the outer corner slightly produced and the inner provided 

 with a small narrow, abruptly incurved branch. The same legs 

 have the second and especially the third joints swollen into conical 

 prominences on the lower side. 



Coxa? of seventh pair of legs with a simple triangular-conic process, 

 longer and thicker than those of the preceding legs. 



