182 G. STEWAEDSON BRADY. 



L. acantliocei'coides it is considerably larger. Moreover^ 

 the caudal part is somewhat less broad, and the terminal 

 claws have each at the base a very small denticle, omitted in 

 my previous figure. 



Two specimes of L. propinqua were seen in the nettings 

 from Richmond. These are undoubtedly identical with Sars' 

 species, and are here figured (PL XXXI, figs. 12, 13). 1 think 

 that Mr. Gurney's L. africana also is referable to the same 

 species. 



Grenus Pleuroxus Baird. 

 Pleuroxus assimilis sp. n. PI. XXXII, figs. 9, 10. 



Body of the female seen laterally broadly subovate, broadly 

 rounded in front, abruptly narrowed and truncated behind, 

 height equal to nearly three fourths of the length (fig. 9) ', 

 anterior extremity produced below the middle into a long, 

 slender, acutely-pointed rostrum, posterior very narrow, 

 almost rectilinear, notched twice or thrice near the ventral 

 angle, dorsal margin very strongly arched, slightly sinuated 

 behind, where it forms a sharp postero-dorsal angle ; ventral 

 margin boldly convex in front, where it turns abruptly up- 

 wards, forming a deep sub-rostral sinus. Surface of the 

 valves faintly marked behind the middle with fiexuous longi- 

 tudinal striae, plain in front. Ocellus smaller than the eye, 

 and situated nearly half way between that organ and the 

 point of the rostrum. Post-abdominal lamina with a pro- 

 duced and rather broadly rounded post-anal angle, of nearly 

 uniform width throughout (fig. 10), marginal spines nume- 

 rous, about twenty on each lamina, those of the distal angle 

 long and curved, the rest short and nearly equal ; terminal 

 claw strong and deeply coloured, with two spinules at the base, 

 one long and one short. Length, 0*5 mm. 



Hab. — Richmond. Only two specimens seen. 



