Orchomene 45 



shorter than basal Joint of outer, armed witb 3 spinules. Telson broadly 

 ovate, tapering distally, witb 3 pairs of dorsal spinules, cleft narrow, reacbing 

 about to centre. Colour yellow or ochraceous. L. Q 10, d about 6 mm. 



Arctic Ocean, North-Atlantic and North-Sea (Norway). Depth 56 — 188 m. 



2. O. pectinata O. Sars 1882 0. pedinatus, 0. pectinata, G. 0. Sars in: Forh. 

 Selsk. Christian., nr. 18 p. 80 t. 3 f. 5, 5a; p. 120 ; 1890 & 95 0. pedinatus, 0. pedinata, 

 G. O. Sars, Crust. Norway, v.l p. 64 t. 23 f. 3; p. 682 | 1893 Anonyx pedinatus (part.), 

 A. Della Valle in: F. Fl. Neapel, v.20 p. 820. 



Head, lateral angles projectiug, acute. Side-plate 1 dilated below. 

 Pleon Segment 3, postero-lateral angles scarcely rounded, their bind margin 

 curved, witb coarse and sbarp upturned serration of 12—16 points, 4*'' segment 

 witb bigb carina ending acutely. Eyes narrow, sligbtly sigmoid, visual elements 

 imperfectly developed; almost cream-coloured. Antenna 1 in 9 , flagellum witb 

 13 joints, 1^* large, accessory flagellum 7-jointed. Epistome greatly projecting, 

 evenly rounded. Gnatbopod 1, B*'^ Joint not mucb ionger tban 5*^^ a little 

 tapering. üropod 3, inner ramus as long as basal Joint of outer, cariying 

 4 spinules. Telson small, witb 2 pairs of small dorsal and a pair of apical 

 spinules, cleft reacbing nearly to centre, veiy debiscent. Colour pale gTeyisb 

 wbite. L. 9 12 mm. 



Arctic Ocean, North-Atlantic and North-Sea (VVest-Norway). Depth 226 m. 



3. O. batei 0. Sars '?1853 Lysianassa humilis, A. Costa in: Rend. Soc. Borbon., 

 n. ser. v.ü p. 172 j 1893 Anonyx h. -j- A. goesii, A. Della Valle in: F. Fl. Neapel, c.20 

 p.817 t. 26 f. 32—37; p. 273, 920 | 1895 A. h., Sowinski in: Mem. Soc. Kiew, v.U 

 p. 250 t. 4 f. 15 — 18; t. 5 f. 1 — 7 | 1857 A. edwardsii (err., non Kreyer 1846!), Bäte in: 

 Ann. nat. Hist., ser. 2 v. 19 p. 138 ] 1861 Lysianassa longicornis (part.) (err., non H. Lucas 

 1845/46!) -|- Anonyx edivardsi, Bäte & Westwood, Brit. sess. Crust., v.l p. 85 (figure of 

 animal and pleon only); p. 94 f. | 1882 Orchomene batei, G. 0. Sars in: Forh. Selsk. 

 Christian., nr. 18 p. 81 | 1890 0. h., G. 0. Sars, Crust. Norway, v. 1 p. 60 t. 22. 



Head, lateral angles projecting, broadly rounded in , narrow linguiform 

 in d. Side-plate 5 broader tban deep. Pleon segment 3, postero-lateral angles 

 almost quadrate, witb binder margin minutely crenulate, dorsal depression of 

 4th segment stronger in ä tban in 9 . Eyes oval, sligbtly reniform, dark 

 reddisb brown, mucb larger in <5 tban in 9 . Antenna 1, flagellum witb 8 joints, 

 1^* large, accessory flagellum witb 5 joints, 1^* of moderate lengtb. Antenna 2 

 in 9 , ultimate Joint of peduncle sborter tban penultimate, scarcely as long as 

 antepenultimate, flagellum 9-jointed; in Ö , ultimate Joint of peduncle stout, füll 

 as long as penultimate and longer tban antepenultimate, flagellum reacbing tbe 

 füll lengtb of tbe animal.^ p]pistome narrow linguiform, projecting mucb. 

 Gnatbopod 1 sbort and stout, 6*^ Joint not greatly longer tban 5*^ distally 

 tapering. Gnatbopod 2, 6**^ Joint very narrow, oblong linear, minutely produced, 

 tbe spiny armature unusually coarse. üropod 3 in 9 ,-inner ramus sborter tban 

 basal Joint of outer, mucroniform, witbout spinules; in c5, botb rami long, 

 and densely setose. Telson in 9 oblong quadrangular, scarcely tapering, about 

 once and a balf as long as broad, witb 2 pairs of marginal spinules, 

 cleft very sbort and wide, about one fourtb of total lengtb; telson in 6 more 

 tban twice as long as broad, witb 3 or 4 pairs of spinules, cleft mucb 

 narrower, nearly a tbird of tbe lengtb. Body cream-coloured, eacb segment 

 of peraeon witb a reddisb speck at tbe bind corners. L. 9 7, d 8 mm. 



North-Atlantic, North-Sea and Skagerrak (South- andWest-Norway, Great Britain, 

 France). Depth 38— 76 m. 



