A nth essius — I L LG 
353 
hyaline flange. Apical spine with external hy- 
aline flange and internal row of cilia. Endopodite 
flexed medially and proximally. Armature: first 
segment, 1 medial seta; second segment, 1 medial 
seta; third segment, 1 lateral spine, set in dis- 
tinct emargination, 2 apical setae, 3 medial 
setae. Each segment with row of cilia on lateral 
margin. Each of 2 basal segments produced at 
distal lateral corner as spinous cuticular process. 
Spine of terminal segment subtended by such 
process, and with outlining hyaline flange. All 
setae of leg with plumose ciliation. 
Second legs (Fig. 41) with well-developed 
bimerous protopodites yoked by substantial in- 
tercoxal plate. Medial seta of coxopodite on 
medial free portion of border of segment. Seta 
about as long as width of intercoxal plate. A few 
spinules at lateral distal corner of coxopodite. 
Basipodite with lateral seta, medial margin with 
dense row of cilia. Exopodite, extended directly, 
without notable flexure, trimerous. Armature: 
first segment, 1 lateral spine; second segment, 
1 lateral spine, 1 medial seta; third segment, 3 
lateral spines, 1 terminal spine, 1 terminal seta, 
4 medial setae. First segment with row of fine 
spinules on lateral margin, a few cilia on medial 
margin. Proximal 5 spines of ramus each out- 
lined with serrate, hyaline flange. Apical spine 
with external hyaline flange and internal row of 
cilia. Endopodite flexed medially and proximally. 
Armature: first segment, 1 medial seta; second 
segment, 2 medial setae; third segment, 2 lateral 
spines, set in steplike emarginations, 1 terminal 
spine, 3 medial setae. Each of 2 basal segments 
produced at distal lateral corner as spinous cutic- 
ular process. Spines of terminal segment sub- 
tended by such processes, but these less de- 
veloped than those of basal segments. Each seg- 
ment with dense row of cilia on lateral margin. 
Spines of terminal segment with hyaline flanges. 
All setae of leg with plumose ciliation. 
Third legs (Fig. 42) with well-developed 
bimerous protopodites yoked by substantial in- 
tercoxal plate. Medial seta of coxopodite, about 
as long as width of plate, inserted on medial 
free portion of distal border of segment. A few 
spinules at distal lateral corner of coxopodite. 
Basipodite with small lateral seta; medial mar- 
gin with dense row of cilia. Exopodite, extended 
directly, without notable flexure, trimerous. 
Armature: first segment, 1 lateral spine; second 
segment, 1 lateral spine, 1 medial seta; third 
segment, 3 lateral spines, 1 terminal spine, 1 
terminal seta, 4 medial setae. First segment with 
row of fine spinules on lateral margin, dense 
row of cilia on medial margin. Second segment 
with a few cilia on proximal part of medial 
margin. Proximal 5 spines of ramus each out- 
lined with serrate, hyaline flange. Apical spine 
with external hyaline flange and internal row 
of cilia. Trimerous endopodite slightly flexed 
medially and proximally. Armature: first seg- 
ment, 1 medial seta; second segment, 2 medial 
setae; third segment, 3 lateral spines, set in step- 
like emarginations, 1 terminal spine, 2 medial 
setae. Each of 2 basal segments produced at 
distal lateral corners as moderately spinous cutic- 
ular process. Spines of terminal segment sub- 
tended by such processes, but these less de- 
veloped than those of basal segments. Each seg- 
ment with dense row of cilia on lateral margin. 
Spines of terminal segment with hyaline flanges. 
All setae of leg with plumose ciliation. 
Fourth legs (Fig. 43) with well-developed 
bimerous protopodites yoked by substantial in- 
tercoxal plate. Medial seta of coxopodite small, 
inserted on somewhat diagonally directed medial 
free portion of distal border of segment. A few 
spinules at distal lateral corner of coxopodite. 
Basipodite with small lateral seta; medial mar- 
gin with short, dense row of cilia. Exopodite, 
extended directly, without notable flexure, trim- 
erous. Armature: first segment, 1 lateral spine; 
second segment, 1 lateral spine, 1 medial seta; 
third segment, 3 lateral spines, 1 terminal spine, 
1 terminal seta, 4 medial setae. First segment 
with row of fine spinules on lateral margin, 
cilia on medial margin. Proximal 5 spines of 
ramus each outlined with serrate, hyaline flange. 
Apical spine with external hyaline flange and 
internal row of cilia. Trimerous endopodite 
with very slight medial flexure. Armature: first 
segment, 1 medial seta; second segment, 2 me- 
dial setae; third segment, 3 lateral spines set in 
steplike emarginations, 1 terminal spine, 1 me- 
dial seta. Medial setae of all segments reduced, 
that of distal segment very short. Each of basal 
2 segments produced moderately at distal lateral 
corner as small spinous cuticular process. Spines 
of terminal segment subtended by such proc- 
