Eriopisa 411 



22. Gen. Eriopisa Stebb. 



1859 Eriopis (noii E. Mulsant 1851, Coleoptera!), R. M. Bruzelius in: Svenska 

 Ak. Handl., n. ser. i'. 3 nr. 1 ]>. 64 1 1890 Eriopisa, T. Stebbing in: Ann. nat. Hist., ser. 6 

 0.5 p. 193 1893 E., A. Della Valle in: F. El. Neapel, ü. 20 p.705 i 1894 E., G. Ü. Sars, 

 Crust. Xorway, r.l p. 514 | 1890 Eriopsis, Wrzesniowski in: Z. wiss. Zool., r. 50 p. 632. 



Body sleuder and smooth. Head not rostrate. 8ide-plates all shallow. 

 Eyes wanting. Antenna 1 much the longer! accessory flagellura sraall. 

 2-jointed. Upper lip rounded. Lower lip witli inner lobes. Mandible normal, 

 spine-row with many spines. palp slender, 3'^ Joint longer thaii 2*^. Maxiila 1, 

 inner plate with numerous setae, outer with 7 spines, 2'^ Joint of palp with 

 3 or 4 spiue-teeth. Maxilla 2, inner plate fringed on '■^/.. of inner margin. 

 Maxillipeds, inner plates squarely trnncate, outer fully reaching middle of 

 palp's 2^ Joint, with setiform spines on apical margin, spinules of inner 

 margin not close to the edge. 3*^^ Joint of palp wide, finger slender. tipped with 

 a spine. Gnathopods 1 and 2 subchelate, unlike and uncqual. tinger without 

 nail or denticle, gnathopod 2 the larger. Peraeopod 5 the longest, with 2^ 

 Joint larger than in the other peraeopods. Uropod 3. inner ramus very 

 small, outer very long, 2-jointed, the joints laminar. Telson deeply cleft. 



1 species. 



1. E. elongata (Bniz.) 1859 Eriopis c. R. M. Bi-uxelius in: Svenska Äk. Handl., 

 11. ser. c.'d ni*. 1 p. 65 t. 3 f. 12 j 1871 NipJiargus elangatus, A. Boeck in: Forh. Selsk. 

 Christian., 1870 p. 136 [ 1876 N. e., A. Boeck. Skand. Arkt. Aniphip., c.2 p. 403 t. 22 

 f. 5 1890 Eriopsis elongata, VVrzeäniowski in: Z. wis.s. Zool., v. 50 p.632 ' 1893 Eriopisa e., 

 A. Della Valle in: F. Fl. Neapel, t. 20 p. 706 t. 38 f. 17 80; t. 60 f. 5 | 1894 E. e., 

 Ct. 0. Sars, Crust. Norway, v.l p. 515 t. 181 f. 2 \ 1895 E. e., A.M.Norman in: Ann. 

 nat. Hist., ser. 6 r. 15 j). 490. 



Body elongate. Head, lateral coruers sliglitly projecting, rounded, post- 

 antennal corners dentiform. Side-plates scarcely contiguous, 1*** angularly 

 produced foi"ward, 4*^ little larger than 5*'» and like it in shape. Pleon 

 Segment 3. postero-lateral corners produced into a small tooth. Antenna 1 as 

 long as body, 1*** Joint not longer than 2**. with slender spine at apex, 3** little 

 over ^|^ as long as 2"*, flagellum nearly thrice as long as peduncle, 32-jointed. 

 accessory flagellum shorter than !***■ Joint of primary. Antenna 2 little longer 

 than peduncle of antenna 1, ultimate Joint of peduncle shorter than penultimate 

 and subequal to the 6-jointed flagellum. Gnathopod 1, 2*^ Joint as in 3 following 

 limbs very narrow at base. h^^ Joint as long as 6*^^' but naiTOwer, 6**^ triangulär, 

 palm and bind margiu almost at right angles one to other. Gnathopod 2 

 much larger, 5*-'' Joint triaugulai", cup-shaped, much shorter thau 6*^ 6**^ oblong 

 oval, narrowing distally, palm very oblique, ill-deflned, long, a little notched, 

 arnied with some strong spines, finger ciliated on inner margin. Peraeopods 1 

 and 2, 5*^^ Joint rather expanded. Peraeopod 3, 21 Joint narrowly oval. 

 l*eraeopod 4 louger. 2*^ Joint considerably wider. Peraeopod 5 with 2^ Joint oval, 

 much larger than in peraeopod 4, bind raargin strongly serrate as also in 

 peraeopods 3 and 4. üropods 1 and 2 of veiy moderate size. Uropod 3, 

 peduncle short, inner ramus not quite equal to it, outer ramus as long as 

 pleon Segments 1 — 5 combiued, both joints laminar, Mnged with spinules, 

 2*^ rather the shorter, its truncate apex armed with dense brush of setae. 

 Telson scarcely as long as peduncle of uropod 1, subtriangular, cleft close to 

 base, apices acute, with spine and setule in notch formed by external tooth 

 a little way up lateral margin. Colour yellowish. L. 11 mm. 



Arctic ücean, North-Atlantic, North-Sea and Skagerrak (South- and West-Norway 

 to Lofoten Isles, depth 94 — 752 in; Bohuslän: Great Britain); Kattegat; Mediterranean. 



