Cumacea: 9. Leuconidae, 2. Eudorella 81 



on the 2"*^ joint. Antenna 2 Q with 3 plumose setae and no division into 

 2 joints. Maxilliped 3 with a hooked spine on medial margin of the 2""* and 

 another on that of the 4^^ joint. Peraeopod 1 long and slender, its 7*^ joint 

 half as long as 6'^ and about three-quarters as long as 5*^. Peraeopod 

 2 rather stout, not long, its terminal joint spade-like surrounded by a moderate 

 number of radiating spines. Peduncle of uropods a little longer than the 

 «xopod, a little shorter than the endopod, in which the terminal spine is 

 fused with the 2'^'^ joint; y^'ijoiut apart from the spine about two-fifths of 

 1st in Q, about one-third in the d, carrjdng 3 spines on medial margin 

 in 9 , in c5' 5 (Mediterranean), 1 (Norwegian). Colour whitish, semipellucid. 

 L. about 5 mm. 



S. and W. Norway, to Lofoten Is., 11 — 56 m; Mediterranean, 38 — 47 m; various 

 seas between these latitudes, at various depths from shallow water. W. Ireland, through 

 depths reaching 549 m, at Trondhjemfjord and at lat. 55** 11' N., long. 11° 31' W. 

 2639 m; U. S. A., Vineyard Sound, etc., depths 29— 97 m. 



11. E. pusilla 0. Sars 1871 E. p., G. 0. Sars in: Ofv. Ak. Forh., ». 28 nr. 1 

 p. 79 and Svenska Ak. Handl., n. ser. v.9 nr. 13 p. 46 t. 16 f. 76— 78; t. 17 f. 79— 94 | 

 1879 E. p., S.I.Smith in: Tr. Connect. Ac, v.bi p. 116 | 1900 E. p., Zimmer in: 

 Fauna arctica. v.l p. 419, 433 tf., 440 | 1912 E. truncatula, Caiman in: P. U. S. Mus., 

 vAl p. 620. 



In shape and size very near to E. timncatida (nr. 10), but distinguished 

 by the upper margin of the pseudorostral lobes which is vaulted in profile, 

 not liattened. and the frontal part almost entirely without setae; tiie pleon 

 also is without trace of hairs. Caiman mentions a procurved dorsal tooth 

 on the carapace close to hind margin of respiratory opening as occasionally 

 present. Antenna 1 comparatively stronger, with the 3*^ joint relatively short 

 and more widened apically; maxilliped 3 without hooked spine on 2"^ or 4*^ 

 joint (as figured); peduncle of uropod as long as P* joint of endopod which 

 is longer than the exopod and 4 times as long as the 2°'^ joint not including 

 the fused terminal spine. L. ovigerous 9 4*5 mm, 6 undescribed. 



Atlantic coast of N. America, depths 2 — 46 ui. 



12. E. abyssi 0. Sars 1887 E. a., G. 0. Sars in: Rep. Toy. Challenger, f. 19 

 pars 55 p. 9, 41 t. 5 f. 5 — 12. 



Body moderately slender, integument thin, beset with scattered short hairs. 

 Pseudorostral lobes smoothly truncate in front down to tridentate prominence 

 bounding the sinus, which is nearly filled by quinquedentate prominence and 

 bounded below by small antero-lateral tooth with succeeding serration of 

 lower margin. Pleon segment 5 without backward projecting setae. Antenna 

 1 rather stout, flagellum 3-jointed, 1-jointed accessory as long as 1^* joint 

 of principal. Peraeopod 1, 1^^ joint half as long as 6*^ which is a little 

 longer than the S^ii, Peraeopod 2, terminal joint almost linear, but as usual 

 fringed with divergent spines. Peduncle of uropods about equal to endopod, 

 in which the ^"^^ joint is less than a quarter as long as the l^S with 4 

 spines on medial margin and a distinct terminal spine, the 1^' joint as 

 long as the exopod and fringed with numerous spines. L. 9 about 9 mm, 

 (S unknown. 



N. Atlantic, lat. 38" 34' N., long. 720 10' W., depth 2268 m. 



13. E. sordida Zimmer 1907 E. s., Zimmer in: Zool. Anz., i'.31 p. 227 tf. 1 | 

 1909 E. s., Zimmer in: Ergeb. Schwed. Siidpol.-Exp., u 6 nr. 3 p. 10 t. 3 f. 48— 52. 



Das Tierreich. 39. Lief. : T. R. R. Stebbing, Cumacea. 6 



