FISHERY BULLETIN: VOL. 82, NO. 2 



Antennule (Fig. 1C). — First antenna (antennule) 

 with unsegmented tubular basal portion (pedun- 

 cle) and distal conical projection. Peduncle with 

 ventral plumose seta. Conical projection with sev- 

 en aesthetascs and two simple setae terminally. 



Antenna (Fig. ID). — Second antenna (antenna) 

 with inner flagellum (endopodite) and outer an- 

 tennal scale (exopodite). Flagellum unsegmented, 

 shorter than scale, and tipped with two simple 

 setae. Antennal scale without distal joint, has 

 fringe of 10 heavily plumose setae along terminal 

 inner margin and prominent spine on distal outer 

 margin. Ventral surface of protopodite with spin- 

 ulose spine at base of flagellum and naked spine at 

 base of antennal scale. 



Mandible (Fig. IE). — Incisor process of right 

 mandible a tooth; left mandible with biserrate in- 

 cisor process. Anterior margins of each mandible 

 with premolar denticles. Mandibles without sub- 

 terminal processes or movable premolar denticle 

 (lacinia mobilis). 



Maxillule (Fig. IF). — First maxilla (maxillule) 

 with coxopodite, basipodite, and endopodite. Cox- 

 opodite (proximal lobe) unsegmented with four 

 large spinulose spines and three simple spines 

 terminally. Basipodite (median lobe) with three 

 spines terminally (each spine with several spin- 

 ules) and two simple spines subterminally. Three- 

 segmented endopodite originates from lateral 

 margin of basipodite. Endopodite with three setae 

 terminally, a long distal seta on second segment, 

 and a short distal seta on first segment. Fine hairs 

 on inner and outer margins of exopodite, outer 

 margin of endopodite, both lobes of basipodite, and 

 distal lobe of coxopodite. 



Maxilla (Fig. 1G). — Second maxilla (maxilla) 

 with platelike exopodite (scaphognathite). Exo- 

 podite with three long plumose setae terminally 

 and a subterminal plumose seta on outer margin; 

 no proximal expansion of exopodite. Endopodite 

 unsegmented, setation formula 3, 1, 3. Basipodite 

 and coxopodite bilobed. Basipodite with four setae 

 on distal lobe and five setae on proximal lobe. 

 Coxopodite with four setae on distal lobe and eight 

 (sometimes seven) setae on proximal lobe. Fine 

 hairs on inner and outer margins of scaphogna- 

 thite, outer margins of endopodite, and distal mar- 

 gins of basipodite and coxopodite. 



First maxilliped (Fig. 1H). — Exopodite partially 

 318 



segmented with four natatory setae. Endopodite 

 slightly longer than exopodite and distinctly five 

 segmented; setation formula 5, 3, 1, 2, 3. Protopo- 

 dite unsegmented with 10 setae. 



Second maxilliped (Fig. II). — Similar to first 

 maxilliped except endopodite slightly shorter 

 than exopodite. Endopodite four segmented, seta- 

 tion formula 5, 2, 2, 2. Protopodite with three 

 lateral setae. 



Third maxilliped (Fig. 1J). — Exopodite and en- 

 dopodite undeveloped. Exopodite partially seg- 

 mented, with three undeveloped setae terminally. 

 Endopodite with undeveloped seta terminally. 



Pereopods (Fig. IK). — Poorly developed, without 

 exopodites. First pereopod bilobed. Fifth pereo- 

 pod arises medially between first and second 

 pereopods. 



Abdomen and telson (Fig. 1A,L). — Abdomen with 

 five somites and telson (somite 6 fused with 

 telson). Somites 2-5 have six bluntly tipped spines 

 on posterior margin and two minute dorsal setae. 

 Outer pair of posterior spines on somite 5 are long 

 (about 1.2 times somite width), blunt, and some- 

 what sinuate. Telson with medial invagination 

 posteriorly and 6 + 6 spines. Third pair of telsonic 

 spines longest (about 3/4 maximum telson width). 

 All spines jointed with telson. Minute seta be- 

 tween spinal pairs 1 and 2 originates from ventral 

 surface; seta often without setules; spinules on 

 spinal pairs 2-6. No uropods or anal spine. 



Rhinolitbodes wosnessenskii 



Stage I Zoeae 



Mean carapace length, 1.29 mm (range 1.21-1.34 

 mm, 10 specimens); mean total length, 4.45 mm 

 (range 4.02-4.62 mm, 10 specimens) (Fig. 2A, B). 

 Cephalothorax and base of maxillipeds orange; 

 remainder of maxillipeds, most of rostrum, and all 

 of abdomen colorless. Carapace with middorsal 

 angular prominence and spine at middorsal poste- 

 rior margin; medially curving, long (>l/4 cara- 

 pace length), posterolateral spines; markedly pro- 

 nounced lateral ridge. No supraorbital or anal 

 spine. Eyes sessile. 



Antennule (Fig. 2C). — Distal conical projection 

 unsegmented from peduncle. Peduncle with ven- 

 tral plumose seta. Conical projection with seven 



