﻿260 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 102 



Rod between legs 1 and 2 narrow, unarmed. Legs 1-3 of the usual 

 form for the genus. Leg 1 (pi. 15, fig. 14) with endopod reaching to 

 distal end of first exopod segment ; modified spine and seta of exopod 

 2 as in plate 15, figure 15. 



Leg 2 (pi. 15, fig. 12) with the outer spine of first exopod segment 

 reaching to the proximal third of segment 3 ; that of segment 2 reach- 

 ing a little beyond the middle of the third segment. First spine of 

 third segment curved downward, shorter than the second, which is 

 setiform and sparsely plumose. Laminae of endopod with somewhat 

 straight outer edges. 



Exopod of leg 3 with outer spine of segment 2 reaching to about 

 middle of third segment; outer spines of segment 3 (pi. 15, fig. 16) 

 all very short, subequal ; differing from ^iores and minor in the pres- 

 ence of a fifth plumose seta inside, this seta shorter and more slender 

 than the others. Endopod like that of flores except that the lower 

 part of the lamellar expansion of segment 2 is much larger, extending 

 distally almost to the end of the third segment. 



Leg 4 (pi. 15, fig. 17) with the basal segment comparatively narrow, 

 set with short spines posteriorly. Segments 2^ bearing short spin- 

 ules inside, that of segment 4 the longest, placed just below the middle 

 of the segment ; this latter spinule apparently homologous to the im- 

 perfectly separated cuticular process of the other two species. Second 

 segment with an irregular double row of outer marginal spinelets; 

 segments 3 and 4 with narrow marginal laminae. Major spines of all 

 segments stout and comparatively short, the longest of the terminal 

 spines being only a little longer than its segment. The distal portion 

 of segment 4 almost squarely truncated, with the inner spine thus 

 placed in a terminal position; this spine straight and stout, a little 

 less than one-third the length of the longest terminal spine. 



Male (pi. 14, fig. 3) : Average total length, 8.7 mm.; length of 

 cephalothorax, 4.7 mm. ; width of carapace, 3.7 mm. Carapace longer 

 than wide, anterior and posterior margins rounded, sides nearly 

 straight. Cephalic area with well-defined dorsal patterns, transverse 

 lines more or less distinct as in female. Spinules set thickly on dorsal 

 surface of thoracic area, thinly scattered over the rest of the carapace. 

 Free thoracic segment almost three times wider than long, set dor- 

 sally with spinelets and posteriorly with long hairs. 



Genital segment and abdomen approximately equal in length. 

 Genital segment about twice as long as broad, with small distal proc- 

 esses; surface covered dorsally and ventrally with minute spines. 

 Anal segment a little longer than the basal segment of the abdomen ; 

 caudal rami slightly shorter than the abdomen, linear as in other males 

 of the genus. Abdomen with center line of long coarse hairs ; caudal 

 rami with similar coarse hairs on inside margins. 



