39 



than the second. The inner flagellum is about two-thirds the 

 length of the carapace. 



The last three joints of the antennal peduncle have each a 

 thick spine on the inner side. The renal tubercle is not as long 

 as the peduncle. The scale is narrow and leaf-like, fringed 

 with pinnate setae, and does not quite reach the tip of the 

 peduncle. The flagella are shghtly shorter than the inner branch 

 of the antennules. 



The chelipeds are shorter than the body. Both margins of 

 the merus are spinulose. The outer margin has only five or 

 six spinules, the inner many more, but these much smaller. 

 At its distal end it bears two curved spines. The carpus has the 

 usual upper and lower distal spines, and has also a row of 

 minute spinules on its outer edge, as has also the palm of the 

 propodite. At the base of the dacty] there is a single spine. 



The merus of the second pereiopods has a row of five or six 

 long spines on the posterior margin, and four similar spines 

 OP the outer side. The carpus has also five spines on its posterior 

 margin, and two at the distal end ; it bears a heavy fringe of 

 setae on the outer side. 



The third and fourth pereiopods are shorter than the last 

 and very slender. They are devoid of setae except for a tuft 

 at the end of the merus, and a similar one on the carpus. 



The fifth pereiopods are very slender and feeble, and are 

 almost simple, the fixed finger being represented by a very 

 short process of the propodite. They are fringed with setae 

 throughout. 



The first pair of pleopods are wevy small and feeble two-jointed 

 structures. 



The second to fifth pairs of pleopods are very long and slender, 

 the distal portions being fringed with long pinnate setae. An 

 appendix interna, with an inner distal group of booklets, is 

 present. 



At the external angle of the basal part of the uropods there 

 are two small spines on one side, but only one on the other. 

 The outer margins of the uropods bear a few small spines. 

 The exopodite is much broader than the endopodite. Both are 

 Very nearly as long as the telson. 



Size. — The principal dimensions of the type specimen are as 

 follows : — 



Total length 

 Length of carapace 

 Length of abdomen 

 Breadth of carapace 

 Length of antennules 

 Length of chelipeds 





. 25 mm. 





. 13 mm. 





. 12 mm. 





15 mm. 





. 8-5 mm 





. 18-5 mm 



Two specimens of this species have been taken bj^ the Helga, 

 both off the west coast. 



