57 



The first abdominal segment is very narrow and almost 

 entirely hidden by the carapace. The pleura of the second 

 seoment are poorly developed and its lateral margins are concave. 

 In the third to sixth segments the pleura are well developed, 

 and are fringed with setae. The terga are smooth and have a 

 very sparse covering of setae. The abdominal segments are much 

 broader in the female than in the male, and in the former the 

 pleura completely enclose the space in which the oVa are carried 

 before hatching. 



The telson is folded against the lower surface of the sixth 

 abdominal segment. It is divided into a proximal and a distal 

 portion by a transverse suture. Both are thin and feeble, but 

 the proximal part is slightly calcified, while the distal part is 

 wholly membranous and transparent. The lateral borders 

 have each a deep sinus opposite the suture ; the posterior margin 

 is concave ; the posterior angles are rounded ; the lateral and 

 posterior margins are fringed with fine setae. The telson as a 

 whole is much narrower than the abdominal segments which 

 precede it. 



The eyes are small and reach only to the middle of the rostrum.. 

 The eyestalks are cylindrical, and the border between stalk and 

 cornea is entire and straight. The eyes (in spirit) are of a bright 

 reddish-brown colour. 



The basal joint of the antennules is short, and bears a strong 

 curved spine at its upper and outer extremity ; this spine bears 

 two or three small teeth on its margin. The second joint is 

 roughly cylindrical, and the third is very mmch thickened 

 distally. The upper flagellum consists of about a dozen joints, 

 and the lower, which is much shorter and very slender, of three 

 to five joints. There are no hairs springing from the distal 

 end of the third peduncular joint as in some of the Galatheidea. 



The peduncle of the antennae is five-jointed. The basal joint 

 is short and broad, with the opening of the renal gland on its 

 lower surface. The second joint bears a well developed scale ^ 

 which tapers to a fine point ; its inner border is entire, but the 

 other is very slightly denticulate, and bordered with hairs. 

 The third and fourth joints are short and thick, the fifth long 

 and slightly thickened distally, bearing a thin flagellum which 

 reaches beyond the merus of the chelipeds. 



The third maxillipedes are long and pediform ; the propodite 

 is the longest individual joint. When extended they reach 

 beyond the merus of the chelipeds. None of the joints bear 

 spines, with the exception of the ischium, which has the usual 

 linea cristata. The carpus is very short and broad. The propodite 

 is as long as the merus and the carpus together ; on its inner 

 surface there is a broad obtuse process which reaches its greatest 

 size in the proximal third of the joint. The inner surface of the 

 dactyl, the distal two-thirds of the propodite, and the carpus 

 bear dense fringes of setae. The peduncle of the exopodite 

 reaches just beyond the middle of the merus ; its flagellum is 

 nearly as long as the peduncle. 



