ATOPETHOLID MILLIPEDS — HOFFMAN AND ORCUTT 129 



Coxal processes of third legs of male extending back over bases of fourth legs, 

 subcylindrical but with ventral face flattened or concave, the distal ends abruptly 

 uncate. 



The gonopods are as shown in the figures. Anterior sternite subquadrate; 

 firmly seated in the shallow excavation on anterior face of gonopods. 



Number of segments in the male holotype, 51. 



Diameter, 4.8 mm. 



Range: This species is known so far only from the type locality. 



Comanchelus hubrichti, new species 



Figures 3, 6 



Holotype: Male, USNM 2507, and paratypes of both sexes, from 

 3.3 miles northeast of Pandale, Val Verde County, Texas, collected on 

 June 11, 1955, by Leslie Hubricht. 



Diagnosis: A species in which the anterior coxae of males are not 

 produced into lobes or processes, and in which the posterior gonopod 

 is produced mesially into a thin, acutely angled lamina, its apex 

 distally exceeding the main body of the appendage. 



Description (paratype male) : A stout bodied atopetholid, nearly 

 parallel-sided, with the head and collum narrower than the following 

 segments; last four or five segments much smaller than their pred- 

 ecessors and distinctly telescoped. Color uniform olive-gray. 



Head ovoid, slightly flattened frontally, surface smooth and pol- 

 ished, sunk in collum to edge of the ocellaria. Labral sinus deep and 

 acute; clypeal foveolae 4-4, those nearest the midline set closer to- 

 gether. Geneae short and unmargined, exceeded by the second 

 antennal article. Ocellaria rounded-ovoid, separated by about 2.7 

 times the diameter of each, ocelli variable in size and number, those 

 nearest the mandibular suture much the largest, those near the front 

 of head small and unpigmented, and easily overlooked, 41 on one side, 

 42 on the other. 



Antennae short and slender, not reaching caudal edge of collum; 

 second article largest and longest, the others decreasing in size distally; 

 articles with scattered setae except sixth and seventh, which are fairly 

 thickly clothed with recumbent setae. Outer face of mandibular stipe 

 with a somewhat elevated caudal margin, the discal depression ter- 

 raced around its periphery and ornamented medially with numerous 

 very fine irregular ridges. 



Collum small and rather obtusely triangular laterad, the anterior 

 marginal groove distinct as far as middle of ocellaria, not completely 

 parallel to the edge, and not reaching caudal margin of the collum at 

 the ends. Surface of collum smooth and flat, without punctations or 

 striae. Anterior edge of pleurotergites of second segment turned up 

 into a large marginal flange, the area behind it coarsely striate (fig, 6,d) ■ 



