Myriapoda of West Africa. 37 



First segment smooth, anterior lateral angle rounded ; one complete and 

 deep striation, and a branched, more shallow, marginal striation. 



Subsequent segments : anterior subsegment with seven or eight concentric 

 striations on its anterior portion, the striations with small protuberances about 

 as far apart as the striations are from each other ; some of the protuberances 

 not on the striations, but located without regularity on that part of the sub- 

 segment which is behind the striations. Posterior subsegment rugulose with 

 fine curved and branching wrinkles whose general direction is longitudinal ; 

 the coarser striations of the sides and inferior surface begin about two-thirds 

 of the distance from the dorsal median line to the repugnatorial pore. Supple- 

 mentary margin finely and equally pectinate, points of teeth free, prominent. 



Repugnatorial pores small, longitudinally suboval, situated on the middle 

 line of side, and midway between the straight suture and the articulation. 



Last segment rugose above, smoother below and finely punctate, carinate 

 on the median line above ; posterior angle somewhat produced, rounded. 



Anal valves rugulose- punctate, each with a prominent carina which encloses 

 a crescentic space between it and the well-pronounced, but moderately com- 

 pressed margin ; the carina is produced above into a large sharp-pointed, 

 slightly recurved mucro. 



Pre-anal scale punctate, rounded, nearly twice as wide as long. 



First pair of legs with the expanded portion of sternum provided with a few 

 short spines ; coxa of male with a large, flattened, wrinkled, anteriorly and 

 laterally directed, curved process. 



Third and subsequent pairs without chitinous processes on the penultimate 

 joints. 



Genitalia of male — see plate III, figs. 27, 28. 



Color of alcoholic specimens chestnut-brown, alternating with yellow ; ante- 

 rior portion of each posterior subsegment brown, the posterior margin, and 

 usually a broad dorsal median line, yellow or butF; feet pale reddish, antennae 

 chestnut-brown ; anterior and ventral portions of segments bufl'. In the young 

 the colors are paler and less distinct, so that the general color appears to be a 

 dirty yellow. 



Length 60 mm. ; diameter 4 mm. ; 64 segments. 



Habitat. — Two male, one female, and one young specimen from 

 "Loanda." 



7. Scolopendra niorsitaiis, Linn. 



To this polymorphous species we have referred nine specimens, 

 all the Chilopoda of the collection. Six specimens, males and 

 females from Loanda (Accession 23406), and a female and a young- 

 specimen from "Congo" present no noteworthy deviation from the 

 usual form of this species, except that the superior surfaces of the 

 basal joints of the anal legs, though somewhat flattened, are not 

 at all margined. In discussing this species Meiuert remarks: 



