101 



dorsal seta short, brown, moderately long; posterior apical dorsal seta 

 large, reddish, several smaller but similar thick, reddish brown, secondary- 

 setae near margin of indentation; anterior primary setae short, pointed 

 thick, apical seta brown, ventral seta light, grayish; posterior apical 

 ventral seta reddish brown, long, anterior apical ventral seta light brown, 

 shorter; secondary surface setae of coxa more numerous than on midlegs. 



Trochanter with small spinules ventrally and subventrally; anterior 

 seta small, light, posterior seta long, reddish brown; basoventral seta 

 light brown, thick, long, the other 2 anterior ventral setae light, forming 

 a thick, pointed, apical spine and a thin, short, spine-shaped seta situated much 

 more basally; posterior apical-ventral seta brown, thick, long, subapical 

 seta light, curved, moderately long, a short, light, secondary seta more basally. 



Surface of femora smooth, without spinules; ventral comb with 

 19—20 large spines; primary apical, dorsal, seta light brown, moderately 

 long; basodorsal seta short, light; one secondary dorsal seta in the apical 

 part, another in the basal part; anterior primary seta, as on midlegs, situated 

 subventrally in the apical area, short, brown; posterior primary seta situated 

 near the ventral margin apically, long, reddish brown; primary ventral 

 setae close to each other in middle of segment, represented by a more 

 apical, brown, moderately long seta and a large, pointed, light spine; secondary 

 setae of anterior surface situated subventrally — 4 thin, short setae, a 

 moderately long, thin seta apically on posterior side. Tibia and tarsus 

 covered with small spinules and with 2 basodorsal secondary setae. 

 Basal seta of claw, as on midlegs, light, thin at the end. 



Dorsal process of abdominal segment 1 small, moderately high; lateral 

 processes wide, flat apically, with a hard, round area covered with minute 

 pinkish spinules; similar spinules present on the elliptical convex ventral 

 area. Lateral line from middle of segment 2 to end of segment 8, with 

 small, thin, brownish hairs. 



Gills in dorsal row on segments 2—3 presegmental and postsegmental, 

 postsegmental in ventral row, on segments 2—4; gills of segment 4 sometimes 

 present on one side only. 



Number and arrangement of gills of B. b e 1 1 i c o s a 



Segment 



Dorsal 



Ventral 



2 



1 



1 



1 



3 



1 

 1 



1 



4 





1(0) 



Ventral elliptical areas small, distinct, on segments 2—7. Tergite of 

 segment 9 (Figure 162) brownish, covered with small, pinkish brown spinules; 

 spinules larger near posterior margin;* anterior part with a small, light 



Not shown in Figure 162. 



122 



