232 THE SCHIZOPODA. 



middle of the third joint of the antennular peduncles and is of very moderate 

 breadth; the spiniform outer process from the second peduncular joint is very 

 long, half, or more than half, as long as the squama. 



The copulatory organs (figs. 2e-2g) afford good characters. The terminal 

 process (p%) is somewhat long, with the foot well developed and the heel short; 

 somewhat more than its proximal half moderately tliick and straight, while its 

 distal portion is evenly curved, gradually tapering to the acute end and curved 

 forwards, so that its curvature must be seen from the inner side (fig. 2f); a 

 slender, spiniform, nearly straight, acute, very thin-walled process originates 

 where the cm'vature begins and does not reach the end of the main process. 

 The proximal process (p^) is rather long, considerably bent somewhat from the 

 base and a little curved slightly beyond the middle; its basal part is somewhat 

 thickened on the outer side, the remainder moderately slender, the distal portion 

 much flattened, seen from behind (fig. 2e) very tlun towards the end; seen from 

 the inner side (fig. 2f) with the rather short distal part somewhat expanded, 

 forming a very oblique, distally rounded plate with the posterior margin concave, 

 and the anterior margin very convex with a small protuberance about where 

 the curvature begins. The median lobe with the proximal portion somewhat 

 less than twice as broad as the part beyond the insertion of the lateral process; 

 the most distal part of the lobe suddenly strongly expanded backwards, seen 

 from behind (fig. 2e) therefore this expansion mainly turns its posterior edge 

 towards the observer, while seen from the inner side (fig. 2g) the expanded part 

 shows its form to be a broad triangle; the lateral process (p''.) is moderately 

 large, with the base thick and the distal part slender and broadly curved, with- 

 out any dorsal tooth. The auxiliary lobe is long. The setiferous lobe has the 

 same breadth from before the insertion of the auxiliary lobe to rather near the 

 end which is partly truncate, partly somewhat triangularly produced, with about 

 seven setae, while the parallel lateral margins of the lobe are naked. 



Length of one of the largest specimens 20 imn., but most adult specimens 

 are somewhat smaller, about 16-17 mm. 



Remarks.— This species is allied to the two Atlantic species E. krohnii 

 Brandt and E. americana H. J. H., but it differs from both in some good char- 

 acters, derived from the antennulae and the shape of the two processes on the 

 inner lobe of the copulatory organs. In Bull. Mus. Ocean. Monaco, no. 210, 

 I have pointed out the main differences between these three species, with out- 

 lines of the two important processes on their copulatory organs. 



Distribution. — The long list of locaUties with the number of specimens 



