46 Orchomene 



4. O. hanseni Meinert ?1867 Anonyx melanophthalmus, A. M. Norman in: 

 Rep. ßrit. Ass., Meet. 36 p. 201 j 1890 Orchomene hanseni, Meinert in: Udb. Hauchs, 

 V. 3 p. 154 t. 1 f. 18—24 I 1895 0. h., G. 0. Sars, Crust. Norway, v. 1 p. 681 t. UI f. 2. 



Q . Head, lateral angles somewhat projectiug, narrowly rounded. Side- 

 plate 5 rather broader than deep. Pleon segraent 3, postero-lateral angles 

 narrowly rounded, with bind margin perfectly smooth. Eyes unusually large, 

 oblong oval, widened below, almost black. Epistome uan-owly rounded and 

 less projecting than in 0. batei (p. 45). Antennae and limbs not distinguisbable 

 from those of 0. batei, except that in gnathopod 2 the spines of the 6*^^ Joint 

 are less coarse. Uropod 3, inner ramus simple, much shorter than outer. 

 Telson about once and a half as long as broad, with a Single pair of marginal 

 spinules, cleft very short and angular, wider than deep. Colour uniformly 

 whitish. L. 7—8 mm. — d unknown. 



Christianiafjord, Kattegat, North-Atlantic (Hebi'ides). Depth 14 — 90 m. 



5. O. crispata (Goes) 1866 Lysianassa c, Goes in: Öfv. Ak. Förh., v.22 p.519^ 

 t. 37 f. 3 I 1890 Orchomene crispatus, G. 0. Sars, Grust. Norway, v. 1 p. 63 t. 23 f. 2 | 

 189 J Anonyx c. A. Della Valle in: F. Fi. Neapel, u20 p. 819 j 1871 Orchomene serratus 

 (part.) (err., non Anonyx s. A. ßoeck 1861!), A. ßoeck in: Forh. Selsk. Christian., 1870 

 p. 115 ! 1882 0. 8., G. 0. Sars in: Forh. Selsk. Christian., nr. 18 p. 81. 



Head, lateral angles greatly produced, acute. Side-plates very deep, 

 1^* much overlapping the head, 4^^ as deep as broad. Pleon segment 3, 

 postero-lateral angles rounded, with bind margin straight, finely serrated, 4*** 

 segment without dorsal projection. Eyes oblong linear, reddish brown 

 with light orange coating. Antenna 1, 1^*^ Joint unusually narrow, almost 

 as long as rest of antenna, flagellum with 9 joints, l^* not long, accessory 

 flagellum 6-jointed. Epistome broad, little projecting, obtusely truncate at 

 tip. Gnathopod 1, 3* Joint conspicuously longer than 4*^^, 6*^ much longer 

 than b^^, slightly tapering to the transverse palm. Peraeopods 3 — 5, 2^ Joint 

 much expanded, peraeopod 5 almost quadrate, Uropod 3, rami unusually 

 broad. Telson short and broad, less than once and a half as long as broad, 

 with 2 pairs of marginal spinules, cleft dehiscent, not quite reaching the 

 centre. Body somewhat flesh-coloured. L. 9 12 mm. 



Arctic Ocean; North-Atlantic and North-Sea (West-Norway). Depth 188 — 376 ni. 



6. O. amblyops O. Sars 1890 & 91 0. a., G. 0. Sars, Crust. Norway, vA p.65; 

 t. 25 f. 1 I 1893 Anonyx pectinatus (part.), A. Della Vallq in: F. Fl. Neapel, r.20 p.820. 



Head, lateral angles quadrate, slightly produced. Side-plate 1 expanded 

 below. Pleon segment 3, postero-lateral angles slightly rounded, their bind 

 margin convex, serrate with 14 — 16 distinct points, 4*^ segment with triangulär 

 dorsal projection ending obtusely. Eyes recurved below, Visual elements 

 imperfectly developed, light orange with white reticulation. Antennae as 

 in 0. seiTata (p. 44). Epistome as in 0. crispata, much less prominent than in 

 0. pectinata (p. 45). Gnathopod 1, 6*^joint considerably longer than 5*^. Uropod 3, 

 inner ramus shorter than basal Joint of outer, which carries 3 feathered 

 setae on inner margin. Telson not once and a half as long as broad^ 

 with 3 pairs of marginal spinules, cleft gently dehiscent, about reaching 

 the centre. Colour whitish, tinged in front with yellow. L. Q 8 mm. 



North-Atlantic and North-Sea (West-Norway). Depth 188—376 m. 



