Crustacean Fauna of South Africa. 171 



Britain (Bate) ; France (Chevreux) ; Mediterranean (Costa) ; Bay of 

 Biscay, 75-246 fathoms (Sexton). 



EPIMERIA SEMIARMATA n. sp. 

 (Plate XXVII. Fig. 5.) 



Integument indurated. Kostrum reaching to end of 2nd pedun- 

 cular joint of 1st antenna. Eyes large, roundish-oval. Side-plates 

 1-3 subacute, 4 depth not greater than greatest length, inferior margin 

 ci'escentic, 5 pentagonal, not produced, 6 rectangular, 7 semicircular, 

 but deeper than long. Peraeon broadly rounded, not carinate. Pleon 

 segments rounded, a faint carina on 3rd ending in a shortly pro- 

 duced acute tooth (obsolete in the largest specimen), 4th depressed 

 basally, posteriorly with a low rounded hump, postero-lateral angle of 

 1st rounded, of 2nd acutely but shortly produced, of 3rd rather more 

 produced (as in E. parasitica), no subdorsal carinae or accessory teeth. 



Telson oblong, longer than broad, apex rounded with a shallow 

 triangular incision. 



First antenna, 1st joint longer than 2nd and 3rd together, flagellum 

 half length of body, ca. 26-jointed. 



Second antenna, ultimate joint of peduncle shorter than penultimate, 

 flagellum f length of body, ca. 36-jointed. 



Mandible, 2nd and 3rd joints of palp subequal, 2nd only sparsely 

 setose. 



Maxilliped, apex of outer plate with 8 spine-teeth. 



Upper and lower lips, first and second maxillae as in Sars' figures 

 of E. couigera. 



First and second guathopods similar, 5th joint with 3 bunches of 

 setae on inner margin and one on apex, 6th shorter than 5th, palm 

 very oblique, straight, denticulate but otherwise scarcely defined, finger 

 longer than palm, inner margin serrate. 



First and second peraeopods, 4th and 6th joints subequal, 5th a 

 trifle shorter, 6th with 2 pairs of spines on hind margin, 7th -f length 

 of 6th, inner margin entire. 



Third peraeopod, 2nd joint not expanded, of nearly the same width 

 throughout, posterior apex rounded, with 3 indents each with a seta, 

 4th shorter than 5th, which is shorter than 6th, 7th as in 1st and 2nd 

 peraeopods. 



Fourth peraeopod, 2nd joint similar but rather broader, and broader 

 basally than apically, posterior apex as in 3rd peraeopod, 4th-6th 

 joints also similar, 7th f- length of 6th. 



Fifth peraeopod, 2nd joint pear-shaped, posterior apex scarcely 



