apex; lateral processes low but distinct; area with spines light yellow, 

 different in form from that of Mystacides; sclerite indistinct, small, 

 484 pinkish. Lateral line thin but distinct, consisting of small, whitish hairs on 

 segments 3—7; segment 8 with small dots with 2 chaetoids on each. 



FIGURE 776. Triaenodes bicolorCurt. 

 ventral (B), and lateral (C) 



Abdominal segment 9 and anal legs, dorsal (A), 



Gills with a single filament on segments 2—8, in dorsal and ventral rows; 

 an additional lateral row sometimes present on segment 2. 



Tergite of abdominal segment 9 small, pinkish, heart-shaped (Figure 776, 

 A); setae dark reddish brown, situated behind tergite; medioanal seta long, 

 lateral and anterior-angle seta the same; intermediate and anterior-margin 

 seta short, thin, situated near medioanal seta. 



Anal legs slightly longer than in Mystacides and Athripsodes, 

 with tapering apex (Figure 776). Sclerite "b" white, with a narrow reddish 

 gray stripe dorsally at median margin; setae dark; a strong, short, but 

 thicker seta at margin of stripe; 2 long setae above claw; 2 thinner and 

 shorter setae laterally. Sclerite "c" reddish yellow, with small, thin seta. 

 Claw with 2 denticles. 



606 



