368 
PACIFIC SCIENCE, Vol. XIV, October I960 
Maxilliped (Fig. 100) fairly long, a promi- 
nent mouthpart, as seen in general habitus of 
mouth area, but with little development of seg- 
mentation or ornamentation. Three segments 
suggested by folds and flexures of integument. 
Basal segment fairly well defined, unornamented. 
Second segment ornamented with 1 marginal 
setule and an arching row of spinules. Terminal 
segment with 2 apical setules and an interrupted 
row of spinules on the surface (Fig. 101 ) . Mar- 
gin cuticularized and produced into 2 or more 
spinulelike protrusions. 
Legs 1 to 4 very characteristic for the species 
and unlike those of any other form so far de- 
scribed in the genus in marked flattening and 
exaggerated development of terminal segments 
of rami as broad laminae. Armature and orna- 
mentation essentially identical with that of other 
species. A peculiar type of cuticular ornament 
distributed over various body elements, seem- 
ingly highly distinctive for the species. Each 
element of this ornamentation apparently a 
small cylinder with flat end, the whole of fairly 
soft consistency and protruding like a tube from 
surface of body. A large number of these over 
ventral surfaces of wide epimeral expansions of 
cephalosome, a few on each epimeron of rneta- 
somal segments, a few on each basipodite, some 
on terminal segment of each ramus of each leg, 
some on fifth leg, fairly large numbers forming 
rows down middle of surface of each caudal 
ramus. 
First legs (Fig. 104) with well-developed 
bimerous protopodites, yoked by substantial 
intercoxal plate. Basipodite laterally offset on 
coxopodite, so medial seta of coxopodite in- 
serted on free portion of terminal margin. 
Coxopodite seta extending rather more medially 
than distally, and with its length slightly less 
than width of intercoxal plate. Distal lateral 
corner of coxopodite with row of spinules. 
Basipodite with small lateral seta proximal to 
insertion of exopodite and with short rows of 
cilia on distal margin. Exopodite 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, 3 medial setae. First segment with 
fine spinules on lateral margin and row of cilia 
on medial margin. Proximal 5 spines of ramus 
each outlined with serrate hyaline flange. Apical 
spine with external entire hyaline flange and 
internal row of cilia. Endopodite flexed me- 
dially and proximally, trimerous. Armature: first 
segment, 1 medial seta; second segment, 1 me- 
dial seta; third segment, 1 lateral spine, set in 
slight emargination, 2 apical setae, 3 medial 
setae. Three most distal setae reduced in length. 
Each of basal 2 segments of ramus produced at 
distal lateral corner as spinous cuticular process. 
Spine of terminal segment subtended by minute 
spinous 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. 105) with well-developed 
bimerous protopodites yoked by substantial in- 
tercoxal plate. A row of spinules at distal lateral 
corner of coxopodite. Medial seta of coxopodite 
on medial free portion of border of segment. 
Seta about as long as width of intercoxal plate. 
Basipodite with long lateral seta; terminal mar- 
gin with rows of cilia. Exopodite, flexed and at 
angle to protopodite, trimerous. Armature: first 
segment, 1 lateral spine; second segment, 1 lat- 
eral spine, 1 medial seta; third segment, 3 lateral 
spines, 1 terminal spine, 1 terminal seta, 4 me- 
dial setae. First segment with row of fine spin- 
ules on lateral margin, cilia on medial margin. 
Proximal 5 spines of ramus each outlined with 
serrate, hyaline flange. Apical spine with apical 
hyaline flange and internal row of cilia. Endop- 
odite flexed medially and proximally, trimerous. 
Armature: first segment, 1 medial seta; second 
segment, 2 medial setae; third segment, 2 lateral 
spines, set in slight emarginations, 1 terminal 
spine, 3 medial setae. Setae of terminal segment 
progressively reduced. Each of 2 basal segments 
produced at distal lateral corner as spinous cutic- 
ular process. Basal spine of terminal segment 
subtended by such process, but this much 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. 
Third legs (Fig. 106) with well-developed 
bimerous protopodites yoked by substantial in- 
tercoxal plate. Small medial seta of coxopodite 
inserted on medial free portion of distal border 
of segment. A few spinules at distal lateral cor- 
ner of coxopodite. Basipodite with lateral seta; 
