TIIK MVlMAI'dhA 1\ TlIK A CSTKA MA N MUSKf.M KKol.KM ANN. 



99 



raised margins aud a pair of setio on each side. Anal sternite 

 rounded, with a pair of marginal setae. 



Veuti'al plates very hairy, showing a vagne tiansverse 

 impression and no spines. Pleurosternal suture ridged on tlie 

 segments 2, 3 and 4, scarcely swollen and smoothed backwards, 

 except perhaps on the sixth somite where the swelling is tipped 

 with a tiny granule near the posterior margin of the segment. 

 Stigmata opening in small yellow granules. Legs long, 

 growing longer backwards ; on a (J specimen a leg of the 

 tenth pair measured 5.25 m/m, a leg of the thirty-first pair 

 measured 6 m/m. Joints clothed below with fleecy haii ; 

 thii'd joint longer than the breadth of the corresponding 

 sternite ; sixth shorter than the third. 



Male : — Last joint of the legs furnished with a thick brush 

 (PI. xiv., fig. 17). Joints of the first pair thickened ; the third 

 joint is considerably swollen and is provided with a strong 

 blunt tooth on its lower surface ; claw, strong, acute. The 

 fifth segment bears, between the coxa? of the foixrth pair, a 

 very prominent lamella slightly curved backwards (PI. xiv., 

 fig. 16), almost as wide as long, the anterior and posterior 

 sides of which are hairy aud the margin rounded and shining. 

 The ventral plate of the sixth segment is widely excavated to 

 shelter the copulatory appendages at rest. 



The coxal aperture of the gonopods (fig. 26) is composed 

 of two semicircles placed side by side and fused on the middle 



line. The anterior mai-gin is 

 upraised ; it is almost straight, 

 but is interrupted in the middle by 

 a small triangular, horizontal 

 plate pointing backwards. The 

 posterior margin of the aperture 

 is sinuate and bears on its median 

 curve a very strong and long tooth 

 placed perpendicularly, the proxi- 

 mal part of which dips in the 

 coxal aperture while its distal 

 end, compressed laterally, stands 

 upright between the gonopods. 

 The space left between the 

 Side view of coxal aperture of >4ono- anterior triangular plate and the 

 pods. ./. = stigmata; Ay = 9th pair posterior perpendicular tooth is 



small indeed, as shown ii: \\ir. 26. 



Fifi. 26 — A w,/) a/inuiiita rahihinui.- 



