140 Records of the Indian Museum. [Vol.. XIX, 



spine ; it is, however, somewhat produced and carries a few long 

 setae. The second segment is broader than long and a little 

 shorter than the third. The outer flagellum is thickened at the 

 base where, on its outer side, it bears tufts of long setae. The 

 flagella seem to have been broken at the tips, but both were 

 certainly longer than the peduncle. 



The basal segment of the antenna does not possess an exter- 

 nal spine. The antennal scale (text-fig. la) is oval with convex 

 inner and outer margins and with a blunt apex ; it is about three 

 times as long as wide. The outer margin is not thickened m the 

 usual fashion and does not end in a spine. The midrib described 

 by Miss Rathbun is not evident, though there is a sHght median 

 swelling due to the presence of the longitudinal muscle. The 

 basal segment of the flagellum reaches almost to the middle of the 

 scale. The flagellum itself is long, extending to the end of the 

 fourth abdominal somite when reflected backwards. 



The mandible (text-fig. 16) is deeply cleft into two processes. 

 The anterior or incisor process is pointed, not apically truncate 

 as in Miss Rathbun's figure of the allied species. The posterior 

 or molar process does not possess the grinding surface found in 

 most Caridea, but is narrow and acute with a series of sharp teeth 

 that extend backwards in a single row on the inner side. The 

 mandibular palp is composed of two segments, the distal scarcely 

 half the length of the proximal and bearing a single long feathered 

 seta at the apex. 



The proximal endite of the maxillula (text-fig. ic) is broad- 

 ended and the palp bears two long setae behind the apex. In the 

 maxilla (text-fig. id) the proximal endite is greatly reduced and 

 does not reach nearly to the level of the two lobes of the distal 

 endite. The first maxiUiped (text-fig. le) bears a bilobed epipod. 

 The second maxilliped (text-fig. if) has a bilobed epipod and the 

 exopod reaches be^^ond the end of the merus. The endopod is 

 slender ; the basis and ischium are fused, the merus long and narrow 

 and the carpus very short ; the dactylus is attached obliquely to 

 the end of the propodus. 



The third maxilliped (text-fig. ig)' reaches almost to the end 

 of the antennular peduncle. There is a small epipod (not shown 

 in the figure) and the exopod reaches to the end of the antepenul- 

 timate segment. At the end of this segment on the inner side 

 there is a small stout spinule with three barbs on its inner aspect 

 {text-fig. ih). The penultimate segment is a little more than two- 

 fifths the length of the antepenultimate. The terminal segment 

 is spatulate in form and one and three quarter times the length 

 of the penultimate; it has transverse rows of plumose setae on its 

 surface and spinules on its margins. 



The first peraeopod (text-fig. 3a) does not reach quite as far 

 forwards as the third maxilliped. The exopod extends beyond 



* The exopod in this figure is displaced to the left, ihc outer edge of the 

 endopod being on the right. 



