52 



region dorsally, while the other curves downwards and is lost on the lower part 

 of the branchial region. There is a minute hepatic spine. 



The outer edge of the exopodite of the tail-fan is setose in less than its 

 distal half. 



Eyestalks a little over half the length of the basal joint of the antennular 

 peduncle : eyes black, wider than the rather slender stalks. 



Antennular peduncle, more than three-fourths the length of the carapace 

 measured in the middle line, the basal joint, which is longer than the second 

 joint, but little if at all longer than the third, is hollowed for the eye, and is 

 thin, except along the inner edge : the next two joints are slender and cylindri- 

 cal : the upper flagellum long, the short lower flagellum in the male has the 

 usual prehensile accessory filament. 



Antennal scale nearly two-thirds the length of the carapace, extremely 

 thin : its tip is rounded and its outer edge ends in a microscopic spinule. 



The 2nd maxillipeds, though stout, are not as stout as the proximal long 

 joints of the external maxillipeds. Tiiese latter are rather stouter, in respect of 

 their first three long joints, than the legs, and are only just shorter than the 

 3rd pair of legs : the tip of their third long joint coincides with the tip of the 

 antennular peduncle : they, like the legs, are setose on both edges. 



The 1st pair of legs are a good deal shorter than the 2nd, the 2nd are little 

 shorter than the 3rd : the microscopic chela? of the 2nd and 3rd pairs are hidden 

 in tufts of seta3. The 4th pair of legs are longer than the carapace, all their 

 four long-joints though slender are much compressed and have their posterior 

 border closely fringed with silky seta? of extraordinary length. The 5th pair of 

 legs, which are less than half the length of the 4th, resemble the latter, but are 

 more slender. 



The " andricum" is much like that of 8. bisulcatus but the prehensile fila- 

 ments in which the middle lobe ends are more deeply cleft. 



Colours in life, transparent white with many pink blotches. 



The branchiae are 8 on either side, namely, a podobranch on the 2nd maxilli- 

 peds, a pleurobranch on each of somites IX to XI, and 2 pleurobranchige on each 

 of somites XII and XIII. 



In the largest specimen the carapace is 18 millim., the abdomen 35 millim., 

 measured in the mid-dorsal line. 



Arabian Sea, 738 fathoms, Bay of Bengal, 764, 922, 1748, 1997 fathoms, 

 Andaman Sea, 498 fathoms. 



r,:U-535 , oii /n\„„ ac , „f + i n • \ . 6071 . 0670-6671 527-530 2421 



Regd. Nos. — ^ — : -=- (Types of the species) : 



9 " 9 10 ' 10 



