8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



leg 1 leg B leg S leg i 



exp. end. exp. end. exp. end. exp. end. 



seg. 1 1:0 0:0 1:0 0:0 1:0 0:0 VI 



seg. 2 VI III X IV VI II - - 



Leg 1 (fig. 11) with both rami 2-segmented. Leg 2 (fig. 12) with both 

 rami 2-segmented. Inner 7 spines on last segment of exopodite not 

 articulated. Leg 3 (fig. 13) with both rami 2-segmented. Two inner 

 spines on last segment of exopodite not articulated. Leg 4 (fig. 14) 

 with both rami 1-segmented. Endopodite without spines. Legs 1-4 

 with patches of spinules and adhesion pad as in figures. Leg 5 (fig. 

 15) consisting of outer plumose seta and inner lobe with single terminal 

 spine. 



Egg strings long and slender, extending several times length of body, 

 not recurved. Eggs disc shaped. 



Color of adult female dark brown to black with eye spots separated 

 as in figure 1 . 



Male. — Body form as in figure 16. Length (not including setae 

 on caudal rami) 10.3 mm and width (measiu-ed at widest point) 5.6 

 mm based on an average of 10 specimens. Cephalon rounded when 

 viewed dorsally with head and first thoracic segment fused. Thoracic 

 segments 2-4 free, without dorsal plates except for lateral winglike 

 plates on segment 2. Genital segments 2.3 mm by 2.3 mm, with 

 posterior corners attenuated, terminating in inwardly directed tip. 

 Spermatophores (fig. 17) often visible through genital segment. 

 Abdomen 2-segmented. First segment 432)u long. Second segment 

 576^1 long. Caudal ramus (fig. 18) 1050^ by 665m, bearing 4 long and 

 2 short setae. Outermost long seta 1365/1 long, innermost 910m long, 

 and 2 median setae 1500/i long. Oral area as in female except as 

 follows: second antenna (fig. 19) with last segment in form of large 

 claw, not subdivided as in female; maxilliped (fig. 20) terminating in 

 pointed claw whereas female claw terminating as spatulate tip. 



Legs 1-4 biramose, each ramus of 2 segments, with spine and setal 

 formula as follows: 



leg 1 leg 2 leg S leg 4 



exp. end. exp. end. exp. end. exp. end. 



seg. 1 1:0 0:0 1:1 0:1 1:1 0:1 1:1 0:1 



seg. 2 IV:3 3 IV:6 8 IV:5 6 IV:o 5 



All setae densely plumose. Leg 1 as in figure 21. First segment of 

 endopod with prominent inner adhesion pad. Leg 2 as in figure 22. 

 Leg 3 (fig. 23) with bilobed outer edge on first segment of exopodite. 

 No modified setae on last endopodite segment. Leg 4 (fig. 24) also 

 possessing bilobed outer edge on exopodite first segment. Leg 5 

 (fig. 25) borne on genital segment as lateral projection with 4 setae and 

 1 stout terminal spine (see also fig. 16). Leg 6 (fig. 26) consisting of 



