Crustacean Fauna of South Africa. 171 
Britain (Bate); France (Chevreux) ; Mediterranean (Costa); Bay of 
Biscay, 75-246 fathoms (Sexton). 
EPIMERIA SEMIARMATA DN. Sp. 
(Plate XXVII. Fig. 5.) 
Integument indurated. Rostrum reaching to end of 2nd pedun- 
cular joint of Ist antenna. Eyes large, roundish-oval. Side-plates 
1-5 subacute, 4 depth not greater than greatest length, inferior margin 
crescentic, 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 
Ist rounded, of 2nd acutely but shortly produced, of 3rd rather more 
produced (as in H. parasitica), no subdorsal carinae or accessory teeth. 
Telson oblong, longer than broad, apex rounded with a shallow 
triangular incision. 
First antenna, Ist 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 % 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 H. conigera. 
First and second gnathopods 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 * 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 Ist 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 4 length of 6th. 
Fifth peraeopod, 2nd joint pear-shaped, posterior apex scarcely 
