328 U.S. NATIONAL MUSEUM BULLETIN 236 



Color completely faded, transparently yellowish. No trace of eye 

 or pigmented spot. The ovigerous females carry a sac containing 

 3 to 5 small eggs. 



Adult male, total length 0.36 mm.; greatest diameter 0.08 mm.; 

 length of longest f ureal seta 0.20 mm. 



General shape of male as in female, both in dorsal and lateral 

 aspects. Cephalic somite slightly longer, and in dorsal view shows 

 pair of small hooks, one on each side, inferior of insertion of anten- 

 nules (fig. 127c). In addition, there is a pair of integumental de- 

 pressions, one on each side of the middorsal line, in the middle of 

 the cephalic somite. Back, in lateral aspect, concave; length of 

 thoracic and abdominal somites, development of epimeral plates, 

 and spinulation exactly as in female (fig. 127c^). Furcal rami twice 

 as long as broad, setation as in female. 



The whole carapace has a pitted structure, the pits apparently 

 serving as an insertion for the very short hairs covering the whole 

 body. The whole pattern is best developed on the cephalic somite. 



Antennules of moderate length, % length of cephalic somite, 6- 

 segmented, subchirocerate. Segment 1 with apical, upwardly di- 

 rected knob, segment 2 with strong, curved, externally directed spine. 

 Segment 4 swollen, with conical process, bearing aesthetasc and 2 

 setae. Base of this segment bears short tooth, forming part of closing 

 mechanism. Hinge developed between segments 4 and 5; segments 

 5 and 6 small. Setation represented in figure 1306. 



Antenna and mouth parts identical with those of female. 



Because of the bad condition of this specimen, I made drawings 

 and took the setal formula from the undissected appendages; the 

 animal fragmented during dissection, but I was able to reconstruct 

 the legs. 



Leg 1 (fig. 130/) as in female, with external spine of basis smaller. 

 Legs 2 to 4 (figs. 130^^) with the following setal formula: 



Leg 2 with strong setae on endopodite. Endopodite of leg 3, 3- 

 segmented: segment 1 and 2 of equal length, 2nd apparently carrying 

 a process which was removed during dissection; 3rd with 4 setae. 



Leg 5 (fig. 130j) with very small exopodite, distinctly articulating 

 with baso-endopodite, VA times as long as wide, with 5 setae. Baso- 

 endopodite scarcely elevated, with single, medially placed seta. 

 External lobe well developed, with single seta. 



Armature of genital plates composed of 2 setae on each side. 



