14 Mr. A. 0. Walker on 



Differs from Proholium, Sars, in tlie absence of llie small 

 third joint of the mandibular palp and tiie equal strength of 

 the first and second peraeopbds. 



ProholieUa tyinca^ sp. n. 



W.Q. Hut Point, 11/11/02, one; 13/9/02, one; 13/2/04, 

 one. All female?. 



Lower part of the hind margin of the third 'plcon-segmenl 

 produced backwards and rounded. Eyes small, round, colour- 

 less in spirit. 



Upper antennce without an appendage, reaching the middle 

 of the flagellum of the lower, the third joint half as long as 

 the second. Flagellum 7-jointed, as long as the last two 

 joints of the peduncle. Mandibles bent downwards from the 

 base of the palp to the coarsely toothed cutting-edge ; palp 

 more than half the length of the mandible, the first joint less 

 than one fourth the length of the second. 



Ma.villipeds : inner plates divided, outer distinct but 

 narrow; first and second joints of the palp subequal, the third 

 longer. 



First gvatliopods : lorist shorter and narroicer than the 

 handf the latter wider in the middle than in Proholoides^ the 

 palm very oblique, subequal to the hind margin, spinulose 

 and defined by 2 or 3 s))ines. 



Second gnathopods '. first joint as long and more than half 

 as wide as the hand, margins setose ; third joint produced in 

 an acute point extending beyond the carpal process; wri-^t 

 produced in a narrow setose process. Hand similar to but 

 much larger than that of the first pair, subovoid, the palm 

 longer than the hind margin, convex, spinulose, and defined 

 hy a strong toothy heyond ichich is a smaller tooth and a group 

 of spines. 



The first and second pairs of pera?opods are alike; first 

 joint oblong, curved, almost as long as the next three, and 

 three times as wide ; third and fifth subequal, fourth rather 

 shorter; dactylus slender, two thirds the length of the fifth 

 joint. 



Third pera'opods : first joint narrow-oblong, straight. 



2 he fourth and fifth pdirs are alike ; the first joint oval, 

 deeper than wide, the hind margin smooth. 



Peduncle of the third pair of iiropods subequal to each 

 joint of the ramus. 



Telson not reaching the end of the peduncle of the third 

 uropods, narrowing rather abru})tly to a point, with 3 spines 

 on each side. 



Leno'th 3 mm. 



