FISHERY BULLETIN VOL 77. NO 1 



Figure II. — Squilla empusa, A-E: stage III, first to fifth pleopods respectively, F-J: stage IV. first to fifth pieopods respectively. 



Third, fourth, and fifth maxi II ipeds (Figure 13A 

 to 1.3C) unsegmented buds, 



Pereiopodsl Figure 14Ato 14C) present as buds. 



Posterolateral angles of pleomeres acute, 

 Pleopods one through four (Figure IIF to 111) in- 

 crease setation. Fifth pleopod (Figure IIJ) setose 

 and possessing appendix interna. 



Sixth abdominal somite articulated, Uropods 

 (Figure lOD) biramous, 



Pleotelson (Figure lOD) with 1 denticle in axis 

 of lateral spine, 8 or 9 pairs of intermediate denti- 

 cles, 23 to 30 submedian denticles. 



Stage V (Figure 15) 



Measurements (mm): RL. 2.50 to 3.25; PL, 

 1,50 to 1.65; TL, 8.50 to 9.00; CL, 2.30 to 2.50; PW, 

 1.40 to 1.60. 



Antennule (Figure 2E) with three-segmented 

 inner flagellum armed with two to four setae on 

 distal half of proximal segment; median flagellum 

 also three-segmented. 



74 



Antenna (Figure 3E) with 19 to 23 plumose 

 setae, length of unsegmented endopod now nearly 

 equal to segments bearing it. 



Epistome with small apical spine. 



Mandible (Figure 4E) essentially unchanged. 



Maxillule (Figure 5E) with coxal end ite bearing 

 8 to 12 teeth. 



Maxilla (Figure 6E) with 10 or 11 setae. 



First maxilliped (Figure 7E) with 13 to 17 

 strong setae arranged in five or six groups of 2 to 4, 

 carpus with 5 to 8 distal setae. 



Second maxilliped (Figure 8E) with propodus 

 armed with 30 to 43 denticles. 



Third, fourth, and fifth maxillipeds (Figure 13D 

 to 13F) still unsegmented, but increased in length, 



Pereiopods( Figure 14D to 14F) present as bifur- 

 cated buds. 



Uropods (Figure lOE) with basal prolongation 

 present, 



Pleotelson (Figure lOE) with 8 to 10 pairs of 

 intermediate denticles, 28 to 33 submedian denti- 

 cles. 



