J20 COPEPODA 



possesses 9 setae, of which the 2 proximal ones are extremely short, the third one is distinctly shorter 

 than the strong powerfull S 4—9, of which again S 6 — 7 are the longest. The Li I is well developed 

 but has only a few short soft appendages; the Li I— II were not observed; the Basp. Ill (?) is quite 

 rudimentary, with at least a single almost rudimentary seta, and the Ri I — III iBasp. III?i bears 4 stiff 

 fairly long plumous setae. The Re has 10 well developed plumous setae in addition to an inner quite 

 rudimentary one. The maxillae, have as seen in fig. 3 h, in the main preserved the shape in the female 

 and so has the maxillipes, which is however much more slender, and it has preserved the knob-shaped 

 process of the second basipodite, though it is less prominent than in the female. 



The first pair of legs (PI. VIII, fig. 2a) is distinctly different from that of the female; the anterior 

 surface of the Ri has the process, which is situated laterally at the end of the chitinous list, forming the 

 margin of the rounded lobe, more prominent and perforated by about 3 canals for delicate ducts ; between 

 the Re I and II a distinct articulation is found; the Se Re I is short, delicate and swollen at the base; the 

 outer margin of Re II is almost straight, with a distinct pore placed somewhat beyond the middle; 

 the pore in the outer margin of Re III, which is scarcely indicated in the female, is well developed, 

 and placed somewhat beyond the middle. The pes II differs by well developed articulation between 

 Ri I and IltvUI, and by the comparatively short Se Re I and the /itj /F with the smooth inner margin 

 of the second basipodite. The fi/lh pair of legs shows similarity not only to that of E. mcssinensis 

 but also to that of E. rostrata; the two legs are almost of equal length (figs 3 g— i). The pes dcxt. has 

 a rather short second basipodite, partly fused with the corresponding one of the left side, and a long strongly 

 enlarged third basipodite, which has an inwards process, which bears the rather slender Ri (PI. VIII 

 fig. 2 c) extending somewhat beyond the end of Re I^^-II; it is most narrow in the middle, extending, 

 as well, towards the base, but especially towards the tip, and the anterior surface is slightly concave, 

 with the lateral margin somewhat turned over inwards; the lateral margin has two distal processes, of 

 which the one is placed near the tip. The Re I — -11 is long and slender, without distinct processes. The 

 Re III is as seen in fig. 3 j irregularly curved, and has near the base a plate-shaped process; in the distal 

 half the inner margin possesses a few big teeth, and a more distally dense serration. The lefi leg has 

 the basal segments long and slender, as seen in fig. 3 i ; the obtuse and slender Ri extends somewhat 

 beyond the proximal third of the Re I. The Re I is moderately long and slender; it bears a delicate 

 Se at the base of Re II; the Re II is rather short, and apparently excavated outwards and back- 

 wards (fig. 3 m); interiorly it is produced into a somewhat hairy process; at the base of this process is 

 the slightly curved, attenuated but blunt Re III (fig. 3 1 seen from in front and from the inside), which 

 inwards has two hairy processes basally, and terminally a marginal seam of short hairs. 



Y^ (St. V). Size of female from Thor St. 88 was 3-63 mm.; anterior division 3-06 mm.; uro- 

 some 0-57 mm. * 



The body is more slender, and the abdomen consists of 4 somites without any difference between 

 the first somite in the male and the female. The antennae of the female are scarcely different from 

 those of the adult, except by the Ri, which is one fourth as long as Re, but they are distinctly diffe- 

 rent from those of the male, in which the Ri is almost half as long as Re, well developed and pos- 

 sessing 5 well developed setae in Le and 3 long -^ 2 rudimentary ones in Li, a number which is smaller 

 than that of the adult male (6 -x- 7), and bigger than that of the female (3 -- 2). The legs are in minor 



