ATOPETHOLID MILLIPEDS — HOFFMAN AND ORCUTT 153 



shallow, Striate, the ventral edge rounded and not distinctly margined. 

 Ocellaria small, rounded, separated by a space about 2)^-3 times the 

 diameter of an ocellarium, with 25 ocelli in each. 



Collum slightly wider than width of head, smooth and polished 

 but with microscopic striations, its anterior lateral marginal ridge 

 distinct and parellel sided thi'oughout its length; the caudal edge 

 emarginate near the end, which is produced distinctly caudoventrad 

 and extends below the level of the second segment. 



Pleural lobe of second segment vvdthout trace of anterior raised 

 marginal ridge, the segment with four or five small ridges behind the 

 end of the collum. 



Body segments completely smooth, dorsally without trace of striae 

 or punctations. Caudal thu-d of segments slightly elevated; the 

 lower surfaces of the metazonites provided with numerous short well 

 defined ridges that do not extend caudad as spinules on the margin. 

 No traces of a transverse segmental constriction remain across the 

 dorsum, but the furrow is very pronounced near the sternite, as a 

 deep depression dividing the segment into two subequal parts. 

 Transverse sutures are not evident, but a lateral suture is distinct 

 behind each ozopore. The last four or five segments decrease abruptly 

 in diameter, but only the last two are telescoped, and these not to 

 the extent foimd in the Eurelinae. 



Anal segment rather small, its apex completely smooth and the 

 margin broadly rounded or slightly truncate, the swollen anal valves 

 conspicuously exposed in dorsal aspect. Valves smooth, strongly 

 inflated, their mesial reentrant edges provided with a long series of 

 short, stiff, interdigitating bristles. Preanal scale very broad and 

 distally subtruncate, without tubercules or setae. 



Sternites strongly trapezoidal, almost twice as wide m front as 

 behind, with 6 to 10 transverse striations which curve forward mesially, 

 and set off from the pleurites only by a fine suture. Anterior stigmal 

 depression shared by both sternite and pleurite, posterior depression 

 not set off by an oblique sutm-e. 



Legs relatively long and slender, reaching nearly to level of ozopores; 

 the joints in order of decreasing length 3, 6, 2, 4, 5, 1. Ventral setae 

 normally 1, 1, 2, 2, 2, 6, the tarsal joints with an accessory dorsolateral 

 row of four or five long setae on the caudal side. Tarsal claw well 

 developed, about a third to half the length of tarsus. First two pairs 

 of legs strongly crassate and distinctly reduced in size, legs 3-7 normal 

 in size and shape with long claws and low, apically rounded coxal 

 lobes. Claws of legs 3-5 slightly longer than those following. 



Sympleurite of seventh segment produced mesially into an an- 

 teriorly directed crassate lobe, without trace of median suture. 



Anterior gonopods similar to those of A. citrinus; the posterior 

 gonopods with the distal enlargement somewhat triangularly-ovoid in 



