348 
PACIFIC SCIENCE, VoL XIV, October I960 
bimerous protopodites, yoked by substantial in- 
tercoxal plate. Basal width of basipodite less 
than width of distal margin of coxopodite, so 
medial seta of coxopodite inserted on free por- 
tion of margin. Coxopodite seta relatively long, 
extending rather more medially than distally, 
and with its length slightly less than the width 
of intercoxal plate. Basipodite with small lateral 
seta proximal to insertion of exopodite and with 
row of stout cilia on curving medial margin. 
Exopodite held at angle to protopodite, 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, 3 medial setae. First segment 
with fine spinules on lateral margin, row of 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. Endopodite flexed medially and 
proximally. Armature: first segment, 1 medial 
seta; second segment, 1 medial seta; third seg- 
ment, 1 lateral spine, set in distinct emargina- 
tion, 2 apical setae, 3 medial setae. Each of 2 
basal segments produced at distal lateral corner 
as strong spinous cuticular process. Spine of 
terminal segment subtended by such process, 
and with outlining hyaline flange. Each segment 
with row of cilia on lateral margin. All setae 
of leg with plumose ciliation. 
Second legs (Fig. 18) 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. Basip- 
odite with small lateral seta; medial margin with 
cilia. Exopodite trimerous. Armature: first seg- 
ment, 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 spinules 
on lateral margin, cilia on medial margin. Proxi- 
mal 3 spines of ramus each outlined with ser- 
rate, hyaline flange. Apical spine with external 
hyaline flange and internal margin entire. En- 
dopodite slightly 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 basal 2 segments 
produced at distal lateral corner as small spinous 
cuticular process. Proximal spine of terminal 
segment also subtended by such process. Each 
segment with row of cilia on lateral margin. 
Spines of terminal segment with hyaline flanges. 
All setae of leg with plumose ciliation. 
Third legs (Fig. 19) 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. Basip- 
odite with small lateral seta; medial margin 
with cilia. Exopodite, extended directly, without 
notable flexure, trimerous. Armature: first seg- 
ment, 1 lateral spine; second segment, 1 lateral 
spine, 1 medial seta; third segment, 3 lateral 
spines, 1 terminal spine, 1 terminal seta, 4 me- 
dial setae. First segment with row of spinules on 
lateral margin, row of cilia on medial margin. 
Proximal 5 spines of ramus each outlined with 
serrate, hyaline flange. Apical spine with ex- 
ternal hyaline flange and internal margin en- 
tire. Trimerous endopodite slightly flexed me- 
dially and proximally. Armature: first segment, 
1 medial seta; second segment, 2 medial setae; 
third segment, 3 lateral spines, set in steplike 
emarginations, 1 terminal spine, 2 medial setae. 
Each of 2 basal segments produced at distal 
lateral corner as moderately long spinous cutic- 
ular process. Proximal spine of terminal seg- 
ment subtended by such process, but this less 
developed than those of basal segments. Each 
segment with row of cilia on lateral margin. 
Spines of terminal segment with hyaline flanges. 
All setae of leg with plumose ciliation. 
Fourth legs (Fig. 20) with well-developed 
bimerous protopodites yoked by substantial in- 
tercoxal plate. Medial seta of coxopodite in- 
serted on medial free portion of distal border of 
segment. Basipodite with small lateral seta; 
medial margin with row of cilia. Exopodite, 
with somewhat medial flexure, trimerous. Arma- 
ture: first segment, 1 lateral spine; second seg- 
ment, 1 lateral spine, 1 medial seta; third seg- 
ment, 2 lateral spines, 1 terminal spine, 1 ter- 
minal seta, 4 medial setae. First segment with 
row of fine spinules on lateral margin, cilia on 
medial margin. Proximal 4 spines of ramus each 
outlined with serrate, hyaline flange. Apical 
spine with external hyaline flange and internal 
