254 THE SCHIZOPODA. 



proximal part somewhat deep; preanal spine simple in both sexes. — Exopod 

 of the uropods as long as the telson and as long as or a little shorter than the 

 endopod. 



The copulatory organs (figs. 2e-2h) differ in some features from those of 

 above-described forms. The terminal process (p-.) has the foot of moderate 

 length, the heel rather short, thick, and straight; and the process beyond the foot 

 is moderately long, rather slender and tapering to the acute end ; seen from behind 

 straight (fig. 2e), seen from the inner side somewhat curved (fig. 2g). The proxi- 

 mal process (p^.) is, seen from behind (figs. 2e and 2f), long and nearly regularly 

 curved, constituting about one fourth of a circle; its basal part is very moder- 

 ately robust, somewhat convex on the outer side; it then tapers gradually to a 

 little before the end, where on the inner — the proximal — margin it has a kind 

 of oblong expansion with a slender tooth from the proximal angle (fig. 2f) ; 

 seen from the inner side (fig. 2h) this terminal part shows itself as an oblong, 

 rather broad, distally broadly rounded plate placed obliquely on the end of 

 the slender part of the process and possessing the long, slender tooth at its base; 

 a comparison of fig. 2f with fig. 2h, the latter figure showing the plate a good 

 deal shorter than it is in reality because its position is very oblique in proportion 

 to the direction of the view, will show further details not mentioned in the text 

 as to curvature, etc. The median lobe is produced in some degree from the base 

 on the inner side into a somewhat small, oblique, conical tubercle, (a in fig. 2e 

 and fig. 2g); the most distal i^art of the lobe is widened a little at the curvature 

 of the lateral process and then it taper.s to the acute tip (fig. 2g) ; the lateral 

 process is of moderate size, thick at the base, much bent inwards considerably 

 beyond the middle and without any tooth at the curvature; a minute tooth 

 insei'ted on the inner side of the lobe, off the curvature of the lateral process, 

 may be interpreted as a rudiment of an additional process. The auxiliary lobe 

 is thicker and a little shorter than in the two preceding species. The setiferous 

 lobe is moderately broad with a couple of setae on the distal part of the inner 

 margin; there are six setae on the triangularly produced terminal part and about 

 three setae (fig. 2g, but not visible in fig. 2e) on the proximal half of the outer 

 side near the outer margin. 



Length of an adult male 22 mm., of a very large female 27 mm. 



Remarks. — This large species is easily distinguished by the rather long 

 rostrum together with the shape of the lobes from first and second antennular 

 joints. The copulatory organs exhibit features useful as specific characters. 



Distribution. — E. gibboides Ortm. was established on numerous specimens 



