418 



serration; 4th pair having the posterior projection somewhat more prominent 

 than in the type species. Last pair of epimeral plates of metasome narrowly 

 rounded at the lateral corners, posterior edge nearly straight, and finely 

 serrated throughout. Eyes rather large, oval reniform, pigment light red. 

 Superior antennae in female scarcely exceeding in length l /s of the body, 1st 

 joint of the peduncle rather large, fully as long as the other 2 combined, and 

 exhibiting at the end posteriorly a small dentiform lappet, 2nd joint having, 

 as usual, encompassing the base of the last joint, 2 lappets, the inner of 

 which is bilobate at the tip, flagellum comparatively short, scarcely attaining 

 the length of the peduncle, and, like the terminal joint of the latter, provided 

 along the posterior edge with distinct calceolae, accessory appendage very 

 narrow, linear, exceeding in length the last peduncular joint. Inferior antennae 

 but little shorter than the superior, last joint of the peduncle scarcely 

 attaining the length of the penultimate one, both edged anteriorly with 

 distinct calceolse, flagellum about half the length of the peduncle, and likewise 

 carrying calceolse along its anterior edge. Gnathopoda somewhat less robust 

 than in the type species, carpal lobe very narrow, propodos nearly elliptical 

 in form, its breadth being much greater than its length, palm rather arched, 

 dactylus very slender. The 2 anterior pairs of pereiopoda extremely slender, 

 with the meral joint much elongated, fully twice as long as the carpal one. 

 The 3 posterior pairs likewise much more slender than in E. cuspidatus, with 

 the propodal joint very narrow and elongated; basal joint of last pair far 

 less expanded, and having the posterior edge slightly concave in the middle, 

 dactylus in all pairs not nearly so strong as in the type species. Last pair 

 of uropoda with the rami narrow lanceolate, the inner but little longer than 

 the outer, both having, besides the usual denticles, on the inner edge a series 

 of delicate setae. Telson rather narrow, outer part gradually tapering, and 

 having the lateral edges finely spinulose, terminal lobes acuminate and 

 scarcely diverging, cleft extending not quite to the middle of the telson. 

 Body semipellucid, with a more or less distinct yellowish orange tinge, 

 posterior part of each segment exhibiting generally a somewhat darker, 

 reddish brown hue, antennas banded with red. Length of adult female 12 mm. 

 Remarks. This new species is somewhat intermediate in character 

 between the type species and E. longipes of Boeck, differing, however, rather 

 markedly from both in the comparatively short flagella of the antennae, and 

 the great length of the meral joint of the 2 anterior pairs of pereiopoda. 

 Also the shape of the propodos of the gnathopoda, and that of the 

 telson is somewhat different. From E. longipes^ to which species it bears a 

 considerable resemblance as to the general habitus, it may, in the living state, 

 at once be distinguished by the very different coloration of the body. 



