CAMBALOID MILLIPEDS LOOMIS 49 



above it; two setae on each side. Labriim tridentate, with a basal 

 series of setae. Gnathochilariiim much as in Nannolene but pro- 

 portionately wider and w^ith upper section of the mentum relatively 

 shorter in relation to the lower section. Mandibulary stipes no- 

 ticeably convex, not recessed to receive the antennae; with a raised 

 margin. 



First segment shorter than the next three segments together; an- 

 terior corners more prominent than in Nannolene and with the lateral 

 margin much less oblique, with a raised rim reaching around the 

 anterior corner, the sides without striae; posterior corners strongly 

 curved under and clasping the sides of the second segment. 



Segments 2, 3, and 4 almost as broad as segments 1 and 5. Seg- 

 ment 4 with the anterior and posterior divisions distinct and sepa- 

 rated by a shallow constriction lacking the pits of the succeeding 

 segments; posterior division more convex than the anterior division 

 or than segment 2 or 3. Segment 5 slightly larger than segment 4; 

 the large repugnatorial pore on the anterior fourth of the subsegment 

 surrounded by a broad flattened rim. On segments farther back the 

 pore is located just in front of the middle of the subsegment. 



Anterior subsegments near the middle of the body but little less 

 convex than the posterior subsegments and separated from them by 

 a broad and shallow constriction, in the bottom of which is a row of 

 closely placed deep oval pits; posterior subsegments evenly convex 

 from the constriction to the back margin; with many tiny longi- 

 tudinal impressed lines seldom connected as are those on the segments 

 of Namwlene. Lateral striations few and wide-spaced, highest on 

 segments 5 and 6, where they reach halfway to the pores; on the 

 caudal segments they are almost entirely confined to the ventral 

 surfaces. Segments near caudal end of body becoming less convex. 

 Penultimate segment nearly as long as the antepenultimate, almost 

 flat. 



Last segment relatively short, not as long as the two preceding- 

 segments together; apex subangularly rounded but less produced 

 backward than in Nannolene; with three setae on one side of the 

 middle and two on the other side in the type specimen, indicating six 

 setae normally ; an additional seta near the middle of the hind mar- 

 gin on each side; margin immediately in front of the large tablike 

 processes very deeply emarginate, exposing much of them. 



Valves moderately inflated; margins meeting in a deep groove; 

 each valve with the usual two setae near the opening. Scale rela- 

 tively long; posterior margin more rounded than the anterior mar- 

 gin and with a pair of widely separated setae. 



