0.2 X scale length. Protopodite now carries second 

 sharp spine ventrally, armed as first along outer 

 margins; larger ventral spine now shorter than 

 endopodite; ventral spinulelike setae inconspicu- 

 ous or lacking. 



Mandibles: (Figure 4C). Dentition now larger, 

 more complex. No palp. 



Maxillule: (Figure 4D). Endopodite unchanged 

 from stage I. Basal endite with 4 large spines, 3 

 setae: coxal endite processes stronger, but number 

 unchanged, from stage I, appearing to be 5 spines, 

 2 strong setae. 



Maxilla: (Figure 4E). Endopodite setal formula 

 progressing subterminally 4, 2, plus 3 lat- 

 erally, and fine hairs as shown. Basal endite 

 proximal and distal lobes with 4-5, 6 processes, 

 respectively, former as 3-4 spinelike and 1 thin 

 seta, latter as 1 strong and 1 regular spine, 4 thin 

 setae. Coxal endite distal lobe with 3 spines, 1 

 strong seta, proximal lobe with 8 spines or strong 

 spinelike setae. Scaphocerite with 6 lateral, plus 

 usual elongate apical seta. 



Maxilliped 1: (Figure 4F). Coxopodite and 

 basipodite setae unchanged from stage I. Endopo- 

 dite setal formula now 3, 2 -^ I, 1 + I, 2, 4 + I. 

 Exopodite remains two-segmented throughout 

 later development, now with 7 natatory setae. 



Maxilliped 2: (Figure 4G). Coxopodite and 

 basipodite as in stage I. Endopodite setal formula 

 2, 2 -f- 1, 2, 5 + I. Exopodite as above and for later 

 stages, carrying at this stage 7 natatory setae. 



Maxilliped 3: (Figure 4H). Remarkably de- 

 veloped; incompletely two-segmented exopodite 

 with 6 natatory setae; endopodite poorly calcified, 

 originating about half way up basipodite, two- 

 segmented, with 2 terminal setae. 



Pereiopods: (Figure 2B). Undifferentiated, but 

 enlarging buds throughout stage. 



Abdomen: (Figure 2B, b). Five somites, sixth still 

 fused to telson; lateral spine on somite 5 distinct, 

 that of somite 4 reduced, even vestigial; paired 

 dorsal setae on posterior dorsal margins of somites 

 2-5 remain, and are present throughout later zoeal 

 stages; posterior marginal spinules much reduced 

 in size and number. 



792 



FISHERY BULLETIN: VOL. 76, NO. 4 



Telson: (Figure 41). Marginal setal formula 8 

 + 8, additional pair added in medial sinus; latter 

 reduced from distinct U-shaped notch seen in 

 stage I. Armature on plumose processes as before, 

 but distal tips with hooklike processes more dis- 

 tinct; other setae and hairs as shown. 



Color: Similar to stage I, but with less diffusion 

 of orange frontally; internal midgut region, man- 

 dibles and maxillipedal basipodites retain red- 

 orange color, mandibles showing noticeable red 

 outline, maxillipedal color appearing more dif- 

 fused than stage I; abdominal somites 4-5 with red 

 dorsal and lateral chromatophore lines, plus 

 orange line ventrally, all connecting to single 

 orange ring of spiderlike chromatophores around 

 each anterior margin of somites 4 and 5. Eyes 

 electric blue to black in reflected light. 



Third Zoea 



Carapace length: 1.3 mm. 

 Number of specimens examined: 8. 



Carapace: (Figure 2C, c). Proximal margins of 

 rostral spine more developed laterally when seen 

 dorsally, in this and subsequent stages: length 

 remains about 0.4-0.6 x CL, distal tip reaches to 

 about tip of scaphocerite spine or slightly beyond; 

 posterolateral margins of carapace with denticles 

 much reduced, becoming irregular nubs; dor- 

 somedial margin with only poorly developed, rag- 

 ged nubs, almost totally obsolete; posterior 

 carapace spines considerably shortened, less than 

 0.1 X CL. Eyes much enlarged, basal peduncles 

 elongate. 



Antennule: (Figure 5A). Exopodite segmented 

 from protopodite, bearing 2 lateral aesthetascs in 

 addition to 3 terminal, plus 3 or 4 setae, at tip. 

 Endopodite slightly enlarged, retaining long 

 plumose seta. Protopodite carries single long lat- 

 eral seta distally, plus 2 short fine setae, placed 

 medially, and basally, and 4 short stout setae dis- 

 tally. 



Antenna: (Figure 5B). Endopodite continues to 

 develop, but remains incompletely segmented 

 from protopodite, now about 0.5-0.6 x scaphocerite 

 length, a thin seta just below spinous tip. Scapho- 

 cerite with 9-11 marginal setae, number some- 

 what variable on left and right appendages in 

 same specimen, plus additional shorter spinules 



