122 



Fishery Bulletin 102(1) 



one short spine; basal endite with 2 long and 2 interme- 

 diate sized spines; endopod 5-segmented with numerous 

 setae; exopod with 25-26 plumose natatory setae. 

 Pereiopods (Fig. 3, 1— M) General shape unchanged except 

 addition of setae. 



Pleopods (Fig. 3N) Buds biramous; much longer than that 

 of 2 nd stage. 



Uropods (Fig. 30) Biramous; endopod with a fused spine 

 at distal quarter of outer margin and numerous setae on 

 inner distal margin; exopod with 4 spines on outer margin 

 and numerous setae on inner distal margin. 

 Telson (Fig. 30). With 12 pairs of posterolateral spines 

 plus a median spine. 



,F,I-M,Q , 

 ,B,G,H,N 



Measurement bars represent 1 mm 



Figure 4 



Fourth stage 



Carapace (Fig. 4A) CL. 3.1 mm (SD: 0.13. re=59); Rostrum 

 slightly longer than carapace and directed forward; ros- 

 trum with 15 dorsal spines and 6 ventral spines. 

 Antenna (Fig. 4A) General shape unchanged; longer than 

 that of 3 rd stage. 



Antennule (Fig. 4B) Much longer inner flagellum than 

 that of 3 rd stage; inner flagellum about 0.9 times as long 

 as outer flagellum, 2-segmented with 0, 2 setae; outer fla- 

 gellum 6-segmented with 1, 2, 2, 3, 4 aesthetascs. 

 Mandible (Fig. 4C) Similar to third stage. 

 Maxillule (Fig 4D) General shape unchanged except addi- 

 tion of setae on endites. 



Maxilla (Fig. 4E) Palp with 3, 2, 

 2, 3 setae; endites and scaphog- 

 nathite added numerous setae. 

 First maxilliped (Fig. 4F) Expod 

 with 15 plumose natatory setae. 

 Second maxilliped (Fig. 4G) 

 Basal endite with an epipod and 

 a long spine; exopod with 28-29 

 plumose natatory setae. 

 Third maxilliped (Fig. 4H) Ex- 

 popod with 36-37 plumose nata- 

 tory setae. 



Pereiopods (Fig. 4, l-M) Num- 

 ber of spines increased. 

 Pleopods (Fig. 4N) Lobes much 

 longer than those of third stage. 

 Uropods (Fig. 40) Endopod 

 and exopod with numerous setae 

 on inner distal margin. 

 Telson (Fig. 40) With 12 pairs 

 of spines on posterolateral 

 margin; a pair of lateral spines 

 at distal third. 



Fifth stage 



Carapace (Fig. 5A) CL. 3.6 

 mm (SD: 0.15, re=51); Rostrum 

 directed forward and upward, 

 slightly longer than cara- 

 pace; rostrum with 17-18 

 dorsal spines and 7-8 ventral 

 spines. 



Antennule (Fig. 5B) Inner 

 flagellum 3-segmented and 

 about 0.9 times as long as outer 

 flagellum: outer flagellum with 

 2+2+3+3+3+2+3+5 aesthetascs 

 and distal third 6-segmented. 

 Mandible (Fig. 5C) More ad- 

 vanced development than that 

 of 6 th ; not much change in biting 

 surface. 



Maxillule (Fig. 5D) General 

 shape unchanged except addi- 

 tion of setae on endites. 



