557 



subventrally and slightly further from distal margin. All 4 primary setae 

 of hind tarsus situated dorsally and subdorsally; the distodorsal seta thin, 

 light, moderately long; the second dorsal seta closer to base, long, strong, 

 and brown lilce dorsal setae of tibia; anterior and posterior setae situated 

 subdorsally, lateral and slightly basal to distal seta, the first seta long, 

 the second slightly shorter, both strong, broAvn. 



Claw of hind legs longer and thinner than on midlegs, basal seta in 

 forin of a thinner and lighter spine. 



Dorsal process of first abdominal segment low, wide; a narrow, oblong 

 black sclerite and a small stripe of small, dense, setiform chaetoids near 

 lateral processes. 



Lateral line absent; segments 3—8 with small lateral sclerotized dots. 

 Gills on segments 1—8, with 1—3, rarely 4—5 filaments; ventral gills larger 



than dorsal gills; gills of segment 1 

 situated in middle; dorsal and 

 ventral rows on segments 2 — 8 only 

 presegmental; pleural row with 

 distinct, large presegmental gills 

 on segments 2—7 and small, blunt 

 gill appendages near anterior margin 

 of segments 4—7; segments 3—7 

 with small processes at posterior 

 margin and directed posteriorly. 



Segment 9 without tergite; a row 

 of 23—24 setae on a membranous 

 area near posterior margin, including 

 the widely spaced, thin, moderately 

 long, medioanal setae; anterior-angle 

 setae also large, slightly thicker; 

 other setae thinner, light, shorter, 

 some of them small (Figure 857). 

 Anal rods (Figure 858) short, thick; 

 area "b" membranous dorsally, 

 slightly sclerotized laterally and 

 ventrally; 3 distodorsal setae long, 

 thick, blackish brown; dorsal surface 

 with numerous, strong, mainly large, 

 golden brown setae. 



Sclerite "c" yellowish, with broad, 

 black, lateral margin and a small 

 basal seta. 



Claw (Figure 858) with large, 

 strongly convex, yellowish, basal 

 part; apical part reddish brown; 

 apex reddish, with a very large 

 dorsal denticle and 2 smaller 

 denticles. 



Case 16— 18 mm long, made of 

 coarse sand grains, tubular, 

 relatively wide, slightly curved, 

 slightly tapering posteriorly; 

 posterior membrane slightly convex, 

 with round central hole. 



858 



FIGURES 857 and 858. Notidobia ciliaris L. 



857 — tergite of abdominal segment 9; 

 anal leg, lateral. 



- left 



669 



