Eusinis 341 



Maxillipeds, fiuger well formed, eiiding in a spiiie or nail, its concave margin 

 arnied with 4 spinules. Gnathopods 1 and 2 (Fig. 79) agreeiug with E. longipes 

 more nearly than E. propinquus. üropod 3 in young ö without, in adult ö 

 probably with a fringe of setae as in the two species compared. Telson cleft 

 for barely % of length, apices a little divergent, L. 9 mm. 



South Pacific (New Zealand); Southern Indian Oeean (Kerguelen Island, Heard 

 Island). Depth 282 m. 



4. E. longipes Boeck 1861 E. l, A. Boeck in: Forh. Skand. Naturf., Mede 8 

 p. 656 I 1876 E. l, A. Boeck, Skand. Arkt. Aniphip., v. 2 p. 504 t. 19 f. 4 j 1893 E. l, 

 G. 0. Sars, Crust. Norway, v. 1 p.420 1. 148 f. 1 | ?1862 E. hdvetiae, Bäte (& Westwood), 

 Brit. sess. Crust., v. 1 p. 267 f. \ ?1862 E. h., E. helvetioe, Bäte. Cat. Aniphip. Brit. Mus., 

 p. 155 t.29 f. 1 i 1866 E. bidens, Cam. Heller in: Denk. Ak. Wien, t).26ii p.32 t.3 f. 19 | 

 1893 E. cuspidatus (part.), A. Della Valle in: F. Fl Neapel, ?;. 20 p. 669. 



Body moderately slender, dorsal carina only sligbtly indicated, only 

 pleon Segments l and 2 produced into a dorsal tooth. Head, lateral corners 

 obtusely truncate. Side-plate 1 well produced and rounded in front, side- 

 plates 1 — 3 with 2 denticles at lower bind corner. Pleon segment 3, postero- 

 lateral corners narrowly rounded, convex lateral margin coai*sely serrate. 

 Eyes very large, oblong reniforra, bright 

 red. Antenna 1, 1^* Joint subequal to 2*^, 

 with several dentiform apical projections, 

 2^ with the usual 2, of which the inner is 



5-dentate, flagellum nearlv twice as long ,„ . . ^ fv""^ ^X^'" " ^°^°* 

 as peduncle, with 40 — 50 joiuts, calceoli- 

 ferous, accessory flagellum very narrow, 

 subequal to 3*^ Joint of peduncle. Antenna 2 ^. _ 



.1,1 ■', . 1,- j • • A p Flg. 79. E. antarcticus. 



considerably shorter, ultimate jomt oi Gnathopod i. 



peduncle longer than penultimate, together 



as long as flagellum, ultimate Joint of peduncle and flagellum calceoliferous. 

 Gnathopods 1 and 2 moderately strong, process of 5*^ Joint slender, 6*^ sub- 

 quadrate, little broader than long, palm slightly arcuate, finger slender. 

 Peraeopods 1 — 5 very slender and long. Peraeopods 1 and 2, 4*^^ Joint 

 subequal to 6*^^ not nearly twice as long as 5^^. Peraeopods 3 — 5, 2'' Joint 

 not broadly oval, strongly serrate behind. üropod 3, rami subequal, narrowly 

 lanceolate. Telson comparatively small, tapering, cleft scarcely % of length, 

 apices acute, very little divergent. Colour straw-yellow, mottled all over 

 with brick-red specks; ova dark bluish green. L. 9 reaching 13 mm. 



Arctic-Ocean, North-Atlantic, North-Sea and Skagerrak (Norway, depth 56— 188 m; 

 Shetland Isles; Firth of Clydo; France); Adriatic. 



5. E. leptocarpus O. Sars 1893 E. L, G. 0. Sars, Crust. Noi-way, v. 1 p. 422 

 t. 148 f. 2. 



Hind part of body distinctly carinate, pleon segments 1 — 3 produced 

 to dorsal tooth. Head, lateral corners truncate. Side-plate 1 well expanded, 

 narrowly rounded in front, hind corner smooth. Pleon segment 3, postero- 

 lateral corners narrowly rounded, fine serration of lateral margin turning* 

 the corner as in E. propinquus. Eyes faintly traced in specimens in spirit. 

 Antenna 1, 1^*^ Joint subequal to 2*^, both long, flagellum shorter than peduncle, 

 without calceoli, accessory flagellum linear, fully as long as 3'^ Joint of 

 peduncle. Antenna 2 not much shorter, ultimate Joint of peduncle shorter 

 than penultimate, flagellum about V« ''^^ ^^^E ^^ peduncle, without calceoli. 



