FISHERY BULLETIN: VOL. 77, NO 2 



Telson (Figure 9A). Subquadrate, posterior an- 

 gles rounded, 5 setae on posterior margin, other 

 setation variable. 



Antennule (Figure 7F) Biramous. Peduncle 

 three-segmented; bulbous basal segment partially 

 bilobed; middle segment subcylindrical, smaller 

 than proximal segment, setae appearing distally 

 as shown; distal segment ovoid, setation variable 

 in all segments. Lower ramus one-segmented with 

 8 setae; upper ramus five-segmented, aesthetascs 

 arranged in tiers: usually 0,12,10,8 ( + 2 setael, 5 

 subterminal plus 3 terminal (note: all aesthetascs 

 not illustrated). 



Antenna (Figure 7G). Peduncle with lateral lobe 

 extending to about midpoint of the first basal seg- 

 ment. First basal segment the largest; setation of 

 the 11 flagellar segments variable, usually 

 4,3,2,0,0,4,0,4,0,4,5. 



Mandible (Figure 7H). With truncately spade- 

 shaped cutting edge: palp two-segmented, setae 0, 

 10-13. 



Maxillule (Figure 71). Protopodite with 1 long 

 feathery seta on the dorsal margin; endopodite 

 two-segmented, longer and more swollen proximal 

 segment with 1 lateral seta, distal segment with 4 

 setae; basal endite with 28-33 spines and setae; 

 coxal endite with 15-19 setae. 



Maxilla (Figure 7J). Endopodite now unseg- 

 mented with 4-6 setae; setation of basal endites 

 variable: 10-13, 11-15, setae on coxal endites also 

 variable: 9-15, 4-10. Scaphognathite of megalopae 

 (V) usually with 66 plumose setae on the outer 

 margin plus up to 12 small setae on blade, 

 megalopae (VI) with 76 plus 18. 



Maxilliped 1 (Figure 8B). Exopodite two- 

 segmented, proximal segment usually with 5 (4-6) 

 setae distally, distal segment usually with 6(5-7) 

 setae. Endopodite unsegmented, usually with 6 

 (6-9) setae. Basal endite setation variable, 30-34 

 on megalopae (V), 40-44 on megalopae (VI); coxal 

 endite setae 12-18 on megalopae (V), 20-25 on 

 megalopae (VI). Epipodite with naked processes 

 ( in appearance similar to antennular aesthetascs), 

 12-20 on megalopae, (V), 26 on megalopae (VI). 



Maxilliped 2 (Figure 8C). Exopodite two- 

 segmented, proximal segment with 2 small setae 



374 



medially, distal segment with 8 terminal setae. 

 Endopodite four-segmented, setation variable 

 usually: 8-12, 0-5, 6-10, 9-12, placed generally as 

 shown. Epipodite with up to 10 naked aes- 

 thetasclike setae. 



Maxilliped 3 (Figure 8D). Exopodite two- 

 segmented, 4 medial setae on proximal segment, 

 6-10 on distal segment. Endopodite five- 

 segmented, third and fourth segments partially 

 bilobed, setation on all segments variable, usu- 

 ally: 25, 14, 10, 11, 8. Epipodite usually with 18 

 naked aesthetasclike setae on distal two-thirds 

 plus 8 normal setae on proximal one-third in 

 megalopae (V); 28 plus 8 in megalopae (VI). Pro- 

 topodal setation variable (example illustrated). 



Pereiopods (Figure 9B, C, c, D, d). Chelipeds (B) 

 elongate, equal; dactyl with 4 irregular teeth in 

 gape, propodus with 3, the curved tips overlapping 

 distally. Second to fourth pereiopods (e.g., C) simi- 

 lar; dactyls with 5 teeth ventrally. Fifth pereiopod 

 dactyl (D, d) with 3 long pectinate setae distally 

 (= brachyuran feelers) in megalopae (V), 4 on 

 megalopae (VI). 



Pleopods (Figure 9A, E, F). Pleopods of decreas- 

 ing size on second to sixth abdominal somites; 

 pleopods (uropods) of sixth somite without en- 

 dopodite. Megalopae (V) with 20-21, 20-21, 20-21, 

 16-17, and 11 plumose setae on the exopodite re- 

 spectively; megalopae (VI) with 22-23, 22-23, 

 21-22, 19-20,and 12 plumose setae. Endopoditesof 

 pleopods ( = appendices internae) 1-4 and both (Vl 

 and (VI) megalopae with 3 hooked setae. 



Color. Under incident light, the megalopae 

 exhibit a rose-orange coloration especially pro- 

 nounced around posterolateral borders of 

 carapace. Eyes iridescent turquoise. Eyestalks 

 with black chromatophores dorsally, rose colored 

 posteriorly. Cephalothorax with iridescent tur- 

 quoise chromatophores on epibranchial, pos- 

 terolateral, and entire gastric region. Abdomen 

 with 1 large black chromatophoreon first somite, 2 

 each on second to sixth somites. Second to fifth J 

 pereiopods light rose, darker at joints. Chelipeds " 

 deep orange-rose with black chromatophores in- 

 terspersed, teeth of hand colorless. 



DISCUSSION OF REARING RESULTS 



Few brachyuran decapod larvae exhibit vari- 



