FISHERY BULLETIN; VOL. 77. NO . 



ANTENNA.— Flagellum .still styliform, only 

 about one-third length of scale. Antennal scale 

 about seven times as long as wide, no joints at tip; 

 terminal spine projects considerably beyond tip of 

 scale (Figure 4B). Pro topodite bears small spine at 

 base of flagellum and antennal scale. 



SECOND PEREOPOD.— Distal joint of propodite 

 (Figure 4C) widened, projects distally in later 

 stages. 



THIRD PEREOPOD.— Dactylopodite lengthened 

 (Figure 4D); exopodite has an additional pair of 

 setae. 



PLEOPODS.— Minute buds. 



TELSON (Figure 4Ei.— Endopodite of uropod 

 about three-fourths length of exopodite and 

 fringed with about 15 setae. Lateral margins of 

 telson widen posteriorly, have two spines each. 

 Distal margin emarginated, bears 6 + 6 spines. 



STAGE V ZOEA 



One specimen with rostrum broken and exopo- 

 dites of third pereopods missing. Posterior mar- 

 gins of abdominal somites minutely fringed. 



ANTENNA.— Flagellum slightly rounded at tip, 

 two-thirds length of antennal scale, five-seg- 

 mented. 



SECOND PEREOPOD.— Chela partially formed; 

 distal joint of propodite projected somewhat dis- 

 tally, tipped by .spine (Figure 5A). 



SECOND PLEOPODS.— About one-fourth height 

 of second abdominal somite. 



TELSON (Figure .5B).— Uropods fully developed, 

 no evidence of transverse hinge. Lateral margins 

 somewhat parallel but widen slightly posteriorly. 



STAGE VI ZOEA 



Total length of Stage VI zoeae 10.7 mm (range 

 10.2-1 1.2 mm; 2 specimens). Rostrum (Figure 6A) 

 about one-third length of carapace, projects hori- 

 zontally, bears six teeth dorsally, tip bears hump 

 indicating future location of distal tooth. A few 

 minute spines on posterior margin of fifth somite. 



0. 5 mm 



FKII'RE .5. — Stage V zoea o( Pandalus tnilrns: A. .second 

 pereopod idistal segments), lateral; B, tel.son. dorsal 



Bud of epipodite on second maxilliped. Pleuro- , 



branchiae at base of all five pereopods. I 



ANTENNA. — Inner flagellum nearly as long as 

 antennal scale, about 25-segmented. 



SECOND PEREOPOD.— Chela well formed (Fig- ] 



ure 6Bl. Terminal spines of propodite and dac- I 



tylopodite each bear single spine at base. 1 



634 



