64 



The second maxillae are normally developed. 



The first maxillipedes have a rudimentary epipodite ; tlie 

 basal part of the exopodite is very much flattened. 



The exopodite of the second maxillipedes is longer than tlie 

 endopodite, and its peduncular portion is expanded. 



The coxa of the third maxillipedes has a strong spine on the 

 inner edge ; the ischium has the usual linea cristata. There is 

 a short spine near the distal end of the outer margin of the merus, 

 and a longer and sharper one in the same position on the carpus. 

 The propodite is long and massive, and bears a rounded protu- 

 berance near its extremity on the lower side. Neither the pro- 

 podite nor the dactyl have any spines, but bear thick tufts 

 of setae. The exopodite is very slender ; its peduncle reaches 

 the middle of the merus ; the first joint of its flagellum is much 

 longer than the succeeding ones. 



The chelipeds are developed to an extraordinary extent, 

 being between five and six times as long as the carapace and 

 rostrum. They are slender and cylindrical and thickly covered 

 with sharp spines which are arranged in longitudinal rows. 

 There are six or seven rows on each joint. The longest joint 

 is the merus, and the spines also reach their maximum develop- 

 ment there ; here and there among the spines there are long 

 setae. The spines are similarly arranged on the carpus and 

 the propodite. The carpus is slightly shorter than the latter. 

 The dactyl is less than a third of the length of the propodite. 

 The fingers bear only a few small spines ; both margins are 

 setiferous ; on the inner edge, near the base of each finger, 

 there is a blunt tubercle ; the cutting edges bear isolated teeth 

 which crowd more closely together towards the tip ; the fingers 

 end in sharp and curved claws which cross one another ; the 

 cutting edges do not come in contact with one another except 

 in their distal half and where the two tubercles meet. 



The next three pairs of pereiopods are more slender than the 

 chelipeds and are sub equal in length. They are very much 

 shorter than the chelipeds, reaching only to about the middle of 

 the carpus of the latter. In the merus, which is the longest 

 and stoutest joint, the spines are arranged as in the chelipeds. 

 In the carpus the lower and outer edges are almost free from 

 spines. The propodite is longer and thinner than the carpus, 

 and bears a dorsal tuft of setae at its distal extremity ; on the 

 distal half of its lower margin there is a row of about a dozen 

 mobile spines, interspersed with setae. The dactyl ends in a 

 strong curved claw and also bears a row of about eight or nine 

 spines on its lower surface ; these spines increase in size distally. 



The fifth pereiopods are very small and feeble, and are carried 

 bent on themselves in the manner usual in the group. 



There are no pleopods on the first abdominal segment in the 

 female, but they are present on the second to fifth segments. 

 They are uniramous and two-jointed, bearing tufts of long 

 setae at the extremity of each joint. 



In the male the distal joint of the first pleopods is expanded 



