Metopa 



177 



üropod 3, peduucle short and broad, little louger than one of the subequal 

 joints of the ramus; its one spine is apical. Telson scarcely twice as long 

 as broad, devoid of spines, apex obtuse. L. 3 — 4 mm. 



Arctic Ocean, Xorth-Sea and Christianiafjord (Norway). 



10. M. latimana H. J. Hansen 1887 M. l., H. J. Hansen in: Vid. Meddel., 

 ser.4 u9 p.92 | 1893 M. l, A. DellaValle in: F. Fl. Neapel, u20 p.644 | 1892 M. affinis?, 

 G. 0. Sars, Crust. Xorway, v. 1 p. 260. 



Close to M. affinis. Head, lateral corners broadly rounded. Side-plat'es 

 not very deep. Antenna 1 little shorter than the whole body, peduncle about 

 as long as half flagellum, P* Joint a little longer than 2*^. Antenna 2 about 

 % length of antenna 1, ultimate Joint of peduncle rather longer tha» peuultimate, 

 flagellum 6-jointed. Gnathopod 1 a little shorter and thicker than in M. norvegica, 

 especially as to 6*'» Joint, in which oblique palm occupies whole breadth of 

 band. Gnathopod 2 rather short, powerful, 6*'' Joint widening distally, rather 

 longer than broad, palm long, smooth, nearly straight, defined by a small 

 tooth. Peraeopods 1 — 5 long, the fiugers very long; peraeopod 5, 2^ Joint 

 pretty well expanded. only a little longer than broad. L. 3 mm. 



Arctic Ocean and North-Atlantic (Greenland). 



11. M. norvegica (Lilj.) 1850 Xeuco^Äoe n., W. Liljeborg in: Öfv. Ak. Förh., 

 P.7 p.82 I 1851 L.n., W. Liljeborg in: Yetensk. Ak. Handl., 1850 p.335 t.20 f. 4 | 1862 

 Montagua n.. Bäte, Cat. Amphip. Brit. Mus., p. 370 j 1888 Metopa n., T. Stebbing in: 

 Bep. Voy. Challenger, u 29 p. 236 ] 1856 Montagua pollexianus (nom. nud.), Bäte in: 

 Rep. Brit. Ass., Meet. 25 p. 57 | 1857 M. pollexiana, Bäte in: Ann. nat. Hist., ser. 2 

 ^?. 19 p. 137 I 1869 Probolium pollexianum, A. 31. 

 Norman in: Rep. Brit. Ass., Meet. 38 p.274 | 1874 



Stenothoepollexiana, M'In- 

 tosh in: Ann. nat. Hist., 

 ser. 4 f. 14 p. 265 | 1875 

 Metopa p., Ad. Metzger 

 in: Jahresber. Comm. D. 

 Meere, i;.2/3 p.299 | 1887 

 M. p., H.J.Hansen in:- 

 Vid. Meddel., ser. 4 ü. 9 

 p.92 t. 3 f. 5, 5a I 1892 

 M. p., G. 0. Sars, Crust. 

 Norway, v. 1 p. 269 t. 95 

 1876 M. clypeata (part.), ' 

 A. Boeck, Skand. Arkt. 

 Amphip., u 2 p.454 | 1893 

 M. c, M. pollexiana, A. 

 Della Valle in: F. Fl. 

 Neapel, v. 20 p. 643, 645, 

 569. 



6"'' Joint 



Inner 

 plates 



Fig. 44. 

 M. norvegica. 



Maxillipeds. 

 [After G. 0. Sars.] 



4"' .ö"" C"> Joint 



Fig. 4t>. Gnathopod 2, (^. 

 Fig. 45, 46. M. norvegica. 

 [After G. 0. Sars.] 



Body rather compressed, back rounded. Head, lateral corners broadly 

 rounded. Side-plate 4 fully Jis large as 2* and 3*^ combined. Pleon segment 3, 

 postero-lateral corners rather acute than quadrate. Eyes round, dark red. 

 Antenna 1 longer than antenna 2, 1^* Joint longer than 2"^ and 3*^ combined, 

 flagellum slender, twice as long as peduncle, 24-jointed. Antenna 2, ultimate 

 and penultimate joints of peduncle subequal, flagellum scarce half length of 

 peduncle. Maxillipeds (Fig. 44), inner plates cleft only at apex, nearly as long as 

 the next Joint, which displays no outer plate. Gnathopod 1 (Fig. 45), 4*^ Joint 

 broadly round at produc^ setose apex, 5*^ long, densely setose, nearly twice as 

 long as the 6*, which is narrow but has a distinct nearly transverse palm. 



Das Tierr«ieli. 21. Lief.: T. E. E. Stebbing, Amphipoda I. 12 



