12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



Jvlandible (fig. 5a): Coxale endite large, bifurcate, with rows of 

 spines. Basale^ ventral margin with 4 short bristles foUowed by 1 

 longer bristle near distal end; dorsal margin with 3 bristles, 1 near 

 middle and 2 at distal end; medial surface with 1 bristle at middle 

 and 5 shorter bristles proximally, all near ventral margin. Exopodite 

 short with 2 bristles and triangular process at tip, inner bristle with 

 wreath of long hau-s near middle. Endopodite: distal end of 1st joint 

 with 1 short and 3 long bristles ventraUy; anterior margin of 2nd joint 

 with proximal group of 4 and distal group of 5 bristles; posterior margm 

 with 2 subterminal bristles and termmally with 1 short annulate 

 bristle and 2 clawlike bristles; distal joint with 2 long stout claws of 

 subequal length and 3 bristles. Surface of basale and 2nd joint of 

 exopodite hirsute. 



Maxilla (fig. 5b): Precoxa and coxa with fringe of fine hak along 

 dorsal margin; coxa with short bare bristle on dorsal margm; basale 

 with 3 distal bristles; 1st endopodite joint with marginal hairs, a 

 hirsute bristle terminal on anterior margin and about 5 bristles on 

 distal margin; distal end of endopodite joint provided with numerous 

 bristles; exopodite with 2 long and 1 short bristle. Three endites: 1st 

 endite with about 8 bristles; 2nd endite with about 4 bristles; 3rd 

 endite with about 6 distal and 1 proximal bristle (bristles not shown 

 in illustration). 



Fifth limb (fig. 5c): Epipodial appendage with about 49 bristles. 

 Triangular tooth anterior to mam tooth of 1st exopodite joint about 

 same size as distal tip of 2nd exopodite joint. Distal anterior margin 

 of 1st joint with 2 centrally located bristles. Large curved tooth 

 of 2nd exopodite joint without bristle at distal lateral corner. 



Sixth limb (fig. 5d): First endite with 3 bristles; 2nd endite with 

 4 bristles; 3rd endite with 7 bristles; 4th endite with 6 bristles; 

 epipodial appendage represented by 2 short bristles. Second joint 

 of exopodite not produced posteriorly, distal margin with 13 to 14 

 bristles, medial and lateral surfaces hu-sute. 



Seventh limb (figs. 5e,f): Five cleaning bristles in distal group, 

 3 in proximal group, each bristle with 1 to 5 terminal bells. Terminal 

 comb with about 9 teeth, secondary teeth at base (all teeth not shown 

 in illustration); 2 elongate pegs opposing comb. 



Furca (figs. 5i,j): Each lamella with 4 primary claws and 10 to 12 

 secondary claws. Primary claws 1 and 2 separated from lamella, 

 7 and 12 (or 11) joined to lamella. Primary claws decrease in length 

 proximally on lamella. Secondary claws 3 to 6 about same length, 

 shorter than claw 7, longer than claw^ 8; claws 8 to 12 (or 11) decrease 

 in size proximally. Primary claw 12 (or 11) about same size or longer 

 than preceding secondary claw and longer than following secondary 



