50 NEW DIPLOPODA OF THE GENUS OXTDESMVS—COOE. vol. xviii. 



scarcely distiuguisbable with the naked eye; posterior row more and 

 more remote from the posterior margin. Areas and transverse depres- 

 sion behind the first row of tubercles not distinguishable except on 

 middle segments. 



Carina^ with edges faintly sinuate under magnification; submarginal 

 ridge evident, straight, longitudinal, close to the margin, nearly smooth, 

 shining. 



Eepugnatoiial pores opening nearly laterad in the rather abrupt 

 outer slope of the submarginal ridge. Above the ])ore the ridge is 

 somewhat higher if viewed from the side, and the margin is somewhat 

 decurved below the pore, causing the lateral margins of poriferous 

 segments to appear much thicker than the others; around the pore is 

 the usual excavation and raised rim, though not so pronounced as in 

 some species. 



Near the middle of the cariuse of poriferous segments is a slight 

 though evident elevation, showing the probable location of the repug- 

 natorial gland; the duct leading out to the pore may sometimes be 

 seen. 



Below the carinsie the surface is granular, the granules coarser below 

 and toward the posterior margin ; no large tubercles. Densely hirsute 

 with long hairs along the margin. 



Anterior subsegments longitudinally rugulose; sulcus between sub- 

 segments abrupt, deep, nearly smooth. 



Penultimate segment with the large granules not distinct; surface 

 uneven. 



Last segment transversely rugulose, the posterior half abruptly 

 thinner. Apex broad subquadrate, the twelve marginal and apical 

 bristles located on or near the posterior margin. 



Anal valves very finely granular, vertically somewhat rugulose; mar- 

 gins very prominent, thick ; superior setigerous tubercle located on the 

 margin ; the inferior distinct, large. 



Preanal scale prominent in the anterior portion; setigerous tubercles 

 long, mamillate, subequal to the broader median process. 



Sterna granular, without hairs between the bases of the legs, but 

 hirsute in front and behind. 



Male legs hirsute, the hairs rising from small tubercles, especially on 

 the distal joints; femora distinctly spinetl. 



Color in alcohol dull brown to nearly black, the submarginal ridge, 

 legs, and antenuie, reddish; also a triangular median spot on the ante- 

 rior subsegments. The apex of the triangle is directed caudad; some- 

 times it is produced a short distance upon the posterior subsegment. 



Length, about 60 mm.; width, 11.5 mm. 



LocaUty. — Near Leopoldville, Congo Free State, four males, collected 

 by Kev. J. H. Camp, for whom the species is named, in the National 

 Museum collection. 



No. 758 of the Berlin Museum, collected at Chinchoxo,by Dr. Falkeu- 

 stein, is a male of this species. 



