Monoculodes 261 



4. M. kröyeri ßoeck 1871 M. k., A. Boeck in: Forh. Selsk. Christian., 1870 

 p. 166 ! 1876 M. k. (part.), A. Boeck, Skand. Arkt. Amphip., v.2 1. 15 f. 5 and 6 in part. 

 (51, m, 6 i, k, n, r; the rest referring to other species) [ 1892 Äf. k., G. 0. Sars, Crust. 

 Xorway, v.l p. 305 t. 108 f . 2 | 1894 M. k., T. Stebbing in: ßijdr. Dierk., u 17 p.24 

 1893 Oeäiceros niibilatus (part.), A. Della Valle in: F. Fl. Neapel, f. 20 p. 550. 



Body robust, tumid in front. In general likft M. hanseni, but without 

 carina, frontal process much shorter, tbe rostral tip reaching little beyond 

 middle of 1^^ Joint of antenna 1, eyes not very large, 2*^ Joint of antenna 1 

 not longer tlian 1^*, in antenna 2 ultimate Joint of peduncle as long as peuulti- 

 mate. Gnatbopod 1, palm of 6^'' Joint aboiit equal to bind margin, in gnatbo- 

 pod 2 palra very oblique, only a little shorter tban bind margin. Peraeo- 

 pods 1 — 4 unusually expanded, finger ratber broad, laminar, sborter tban 

 tbe 6*^* Joint. Telson witb convex sides, a little tapering to tbe truncate 

 apex. L. 9 17 mm. 



Arctic Ocean (Greenland, depth 11^ — 47 m); North-Sea (Haugesund [Norway], 

 depth 113 m). 



5. M. pallidus 0. Sars 1892 M.p., G. 0. Sars, Crust. Norway, v.l p.299 1. 106 

 f. 3 I 1893 OediceroB affinis (part.), A. Della Valle in: F. Fl. Neapel, f. 20 p. 938. 



Body ratber compressed, but witb no distinct carina. Frontal process 

 sbort witb narrow, acute, evenly curved rostrum not reacbing apex of 1^*^ Joint 

 of antenna 1 ; lateral coruers of bead obtuse. Side-plate 1 scarcely expanded. 

 Eyes Söiall, round, imperfectly developed, ligbt red. Antenna 1 in Q longer 

 tban peduncle of antenna 2, 2*^ Joint longer tban 1**^ flagellum sborter tban 

 peduncle, 9-jointed. Antenna 2, ultimate and penultimate joints of peduncle sub- 

 equal, flagellum little sborter tban peduncle. Gnatbopod 1, process of 5*'' Joint 

 narrow, produced beyond bind margin of oval 6^'^ Joint, palm well deflned, 

 moderately oblique. Gnatbopod 2, slender process of 5*'' Joint produced 

 mucb beyond bind margin of narrow 6*'* Joint, wbicb is more tban 3 times 

 as long as broad. Peraeopods 1 and 2, 5*^ Joint tapering disfcilly, densely 

 setose on convex bind margin, finger sbort. Peraeopods 3 and 4, finger sbort, 

 compressed. Peraeopod 5, 2'^ Joint ratber broadly oval, 5^*^ little longer tban 4**^. 

 Telson quadrangular, apical margin straigbt. Colour wbitish, pellucid. 

 L. 2 8 mm. 



North- Atlantic (Norway). Depth 110-360 m. 



6. M. carinatus (Bäte) 1856 Westivoodea c. (nom. nud.), Bäte in: Rep. Brit. 

 Ass., Meet. 25 p. 58 ! 1857 Kröyera carinata, Bäte in: Ann. nat. Hist., ser. 2 u 19 

 p. 140 I 1883 Monoculodes carinatus, J. S. Schneider in: Tromso Mus. Aarsh., v. 6 

 p. 19 t. 2 f. 4i 1889 M. c, A.M.Norman in: Ann. nat. Hist., ser. 6 i'. 3 ]f. 447 t. 19 

 f. 1—5 I 1892 M.c, G. O. Sars, Crust. Norway, v.l p.295 1. 105 | 1859 Oediceros affinis, 

 R. M. Bruzeliusin: Svenska Ak. Handl, n. ser. ?;.3 nr. 1 p.93 t.4 f. 18 1 1893 O.a. (part.), 

 A. Della Valle in: F. Fl. Neapel, v.20 p.548 t.4 f.3; t.33f.27— 31 | 1871 Monoculodes a., 

 A. Boeck in : Forh. Selsk. Christian,, 1870 p. 164 | 1862 M. carinatus -{- M. stimpsoni, 

 Bäte, Cat. Amphip. Brit. Mus., p. 104 t. 17 f. 2; p. 105 1. 17 f. 3. 



Robust, ratber tumid in front. Frontal process strongly vaulted, tbe 

 sbort curved rostrum barely reacbing apex of P* Joint of antenna 1. Side- 

 plate 1 distally expanded. Pleon segments 1 — 3 dorsally carinate. Eyes 

 very large, elliptical. purplisb witb yellowisb coating. Antenna 1 in 9 , 1^* and 

 2^ joints subequal, flagellum sborter tban peduncle, 8-jointed. Antenna 1 in d, 

 2*^ Joint much shorter tban l^S flagellum thickened at base, witb some 

 joints densely setose. Antenna 2 in 9 nearly twice lengtb of antenna 1, 

 ultimate Joint of peduncle mucb longer tban penultimate, flagellum equal to tbe 



