266 Mouociilodos 



plate 1 little expauded distally. Eyes rather large, oval, dark red, placed at base 

 of frontal process, some way from apex. Antenna 1 reaching beyond pedimcle 

 of antenna 2, 1^* Joint longer than 2"^, flagellum longer tban peduncle, about 

 12-jointed. Antenna 2 in p, ultimate and peuultimate joints of peduncle sub- 

 equal, together longer than flagellum. Gnathopod 1, process of 5*'^ Joint broad, 

 reacbing palra, 6*^ Joint oblong oval, slightly curved, expanded distally, 

 palm well detined, scarcely as long as bind margin. Gnatbopod 2, process 

 of 5*^^^ Joint reacbing palm*, 6*^ Joint nearly 4 times as long as broad. 

 Peraeopods slender. Peraeopods 1 and 2, 5*^ Joint little expanded, shorter tban 

 6**^, linger long, but ratber sborter than G^^ Joint. Peraeopod 5, 2'^ Joint 

 piriform, h^^ longer than 4*'^ and slightly longer than 6*^. Telson quadrangular, 

 little longer than broad, apical margin scarcely insinuate. Oolour persistent, 

 whitisb, with trausverse bands of reddisb brown. L. 9 scarcely more 

 than 6 mm. 



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

 northwards to Vadsö); Kattegat. Depth 90 -376 m. 



16. M. subnudus Norm. 1889 M. s., A. M. Norman in: Ann. nat. Hist., ser. 6 

 V.3 p. 450 I 1892 M. falcatus, G. O. Sars, Crust. Norway, v.l p. 302 t. 107 f. 2 | 1893 

 Oediceros nubilahis (part.), A. DellaValle in: F. Fl. Neapel, ».20 p. 550. 



Near to M.borealis, M. simplex (p. 262, 264) and to M. uorvegicus (p. 265). 

 Frontal process evenly curved downw^ard, apex of large rostrum reaching 

 beyond apex of 1^*^ Joint of antenna 1. Side-plate 1 considerably expanded 

 distally. Eyes large, rounded oval, bright red, at base of frontal process. 

 Antenna 1 in 9 reaching much beyond peduncle of antenna 2, V^ Joint as 

 long as 2*^ and 3*^ combined, flagellum longer than peduncle, about 13-jointed 

 (Sars). Antenna 1 in 9 , 2^ Joint as long as 1**S 3*^ half length of 2^, 

 flagellum with 11 — 14 joints (Norman in text, but in figure the 3 joints 

 of peduncle, measuro respectively 9, 7, 5 sixteenths of inch). Antenna 2, 

 ultimate Joint of peduncle shorter than penultimate (Sars), subequal (Norman), 

 flagellum as long as both combined. Gnathopod 1, process of b^^ Joint 

 reaching palm (Sars), not reaching it (Norman; their tigures scarcely distin- 

 guishable), 6*^ Joint narrow oblong, somewhat curved, palm shorter than 

 bind margin. Gnathopod 2, process of 5*^* Joint not nearly reaching palm 

 (Sars), reaching palm (Norman; in flgures the diftereuce is trifliug), G*'^ Joint 

 narrow sublinear, more than 4 (Sars; Norman: 5) times as long as broad. 

 Peraeopods less setose tban usual (Norman). Peraeopods rather less slender 

 tban in M. norvegicus, 5*'' Joint in P* and 2^ slightly expanded, finger 

 comparatively shorter. Telson subquadrate,, apical border eraarginate, and 

 according to Norman each rounded angle carrying 5 spinules. Colour more 

 or less dark orange (Sars). L. 10 mm. 



North-Atlantic and Arctic Ocean (Norway to arctic circle, depth 94 — 188 m; 

 Shetland Islands; Sleat Sound [Isle of SkyeJ). 



17. M. packardi Boeck 1871 M. p., A. Boeck in: Forh. Selsk. Christian., 1870 

 p. 166 i 1876 M.p., A. Boeck, Skand. Arkt. Amphip., v.2 p. 274 t. 14 f. 3 | 1883 M. p., 

 J.S.Schneider in: Tromse Mus. Aarsh., v.ü p. 27 t. 1 f. 6 | 1892 M.p., G. O. Sars, 

 Crust. Norway, v.l p. 307 t. 109 f . 1 | 1893 Oediceros nubüatus (part.), A. DellaValle 

 in : F. Fl. Neapel, v. 20 p. 550. 



Rather slender. Frontal process rather convex, rostral part long, narrow, 

 not reacbing end of P* Joint of antenna 1. Side-plate 1 distally expanded. 

 Side-plates in ö sraaller than in 9. Eyes small, rounded oval, ligbt red, 

 at base of frontal process. Autennae 1 and 2, peduncle elongate. Antenna 1 



