a posterior, and 2 dorsal setae; primary distoventral setae in form of blunt 

 spines, posterior larger than anterior. 



Tarsus with small, spine -shaped, distoventral process, and short, thin, 

 light, primary setae near it; distodorsal setae similar. 



Claw, dark brown, blunt, slightly curved; basal seta in form of a short, 

 thick spine. 



Mid- and hind coxae with numerous secondary setae as on forelegs, 

 except for posterior dorsal secondary setae, of which there are 1—2 on 

 midlegs and none on hind legs. Dorsal posterior, and both anterior primary 

 setae, dark brown, long; anterior basal surface seta the same, distal seta 

 situated among secondary setae; both distoventral setae light, larger than on 

 forelegs, anterior larger than posterior. 



Hind trochanter without secondary setae; ventral row of light chaetoids 

 shorter and sparser on midlegs than on forelegs. Primary seta moderately 

 long, especially those on hind legs; 2 anterior ventral setae, apical and 

 subapical, light and spine -shaped on midlegs, larger on hind legs; long, but 

 shorter than other 3 ventral setae. 



Mid -femur slightly convex dorsally; hind femur straight, with nearly 

 parallel dorsal and ventral sides; secondary setae situated dorsally, 

 ventrally, and partly on anterior surface; primary dorsal setae situated 

 apically and basally among secondary setae; anterior surface seta short, 

 412 subapical; posterior surface seta situated subventrally, basally on midlegs, 

 long and subapically on hind legs; both ventral setae of midlegs situated 

 close together at base, widely separated in middle on hind legs. 



Tibia wider distally, hind tibia longer than fore and mid -tibiae; dorsal 

 and subdorsal setae moderately long; distoventral setae in form of short 

 spines, posterior spine blunt, brownish yellow; anterior light. 



Hind tarsus long, like tibia; dorsal setae relatively long; distoventral 

 setae of mid- and hind legs short, thin, posterior seta larger, dark brown, 

 anterior light. Claw reddish brown, with blunt, yellow, basal spine, claw of 

 midlegs shorter and more massive than on hind legs. 



Abdomen almost uniformly wide, slightly tapering posteriorly; segment 8 

 only slightly wider than 9. Lateral line little differentiated, thin, consisting 

 of small, light, thin chaetae on segments 3—7. Gills only presegmental, in a 

 dorsal row on segments 2—8, in a lateral row on segments 2—3, in a ventral row 

 on segments 1—8, with several filaments; each gill consisting of a basal stalk 

 with a row of straight, thin filaments (Volume II No. 1, Figure 19); ventral 

 gills of abdominal segment 1, lateral and dorsal gills of posterior segments 

 very small. 

 413 Abdominal segment 1 shorter than following segments, with a wide, 

 low, dorsal process; lateral processes small, with numerous curved, 

 comblike, apical sclerites. Anterior part of segment with 15—16 golden 

 brown, strong setae lateral to dorsal process, among them 4 primary setae 

 (anterior -margin, and 3 surface setae); anterior angles with 7-11 setae, 

 including primary anterior -angle seta; pleural region with 2 small setae, 

 one dark, the other light; ventral side with a small, crescent-shaped sternite 

 with a medioanal seta at anterior margin; intermediate ventral seta 

 situated on membrane, lateral ventral seta absent. Following segments with 

 only small, pale, primary setae. 



Tergite of abdominal segment 9 (Figure 671 ) whitish yellow, covering 

 almost entire dorsum, with a reddish brown stripe of dots posteriorly. 

 Medioanal and anterior-angle seta situated at posterior margin, dark brown. 



517 



