•J^ij .Ain|iliiliinpsis. I lalirat^cs 



♦»t^^ Joint iiaiTOwer, with sliorter palm. Feraeopods 1 and 2 ratlier sleuder. 

 Peraeopods 3 — 5 ratliei' rol)iist, 2'^joiut with liind margin siiiooth, finger in 

 all peraeopods large, witli 2 deuticles near the curved apex. üropod 2 

 reacMng beyond uropod l. and aboiit as far as iiropod 3, whicb lias outer 

 ramus scarcely Ys ^^ long as inner. Telsoii oval triangulär, apex obtusely 

 pointed. Colour pellucid, whitisb, raottled in l>ands with light red; ova in 

 pouch bluish green. L. o 7 mm. 



Arctic Ocean. North-Atlantic nnci .Xorth-Se;! (Xorway). Depth 94 — 2H2 in. 



5. (lon. Halirages Hoeck 



1871 Halirages (pai-t.), A. Hoeck in: Forli. Selsk. Christian.. 1870 p. 194 i 187H 

 H., A. Boeck. Skand. Arkt. Amphip.. r.2 p. :!37 j 1893 H., G. O. Savs, Crust.. Norway. 

 r.i I). 135. 



Body slender. with some segmcnts dentate. Head, post-antennal 

 Corners acute, not strongly produced. Side-plates 1 — 4 rather shalbw\ 

 Antennae 1 and 2 elongate, with sraall calceoli in several rows. No accessory 

 flagellum. Upper lip rounded. Lower lip without inner lobes. Mandible 

 normal, palp large, 3^ Joint curved. Maxilla 1, inner plate with several 

 (5 or ()) setae, outer with II spines. Maxilla 2, inner plate fringed on 

 inner margin. Maxillipeds normal, palp robust. Gnathopods 1 and 2 feeble. 

 r)*i\joint elongate, 6**i oblong, palm shorter thanhind margin. Peraeopods 1 — 5 

 rather slender, finger short. Peraeopods 3 — 5, 2*^ Joint oval, üropod 3 

 reaching beyond the others. Telson entire, with notcli or sculpturing. 



4 species accepted. 2 obscure. 



Synopsi.s of accepted species: 



Peraeou segment 7 and pleon segments 1 and 2 



dorsally tridentate 1. H. nilssoni . . . . p 29(1 



^ Peraeon segment 7 and pleon segments 1 and 2 

 l dorsally unidentate — ■ 2. 



j Telson transversely truncate. a liltlc iMiiaiuiiuite 2. H. fulvocinctus . . j». 291 



2 I Telson with a little apical notch 3. H. huxleyanus . . p. 291 



I Telson a])ically tridentate 4. H. quadridentatus . p. 292 



1. H. nilssoni Ohlin 1895 H.H., Ohlin in: Acta Tniv. Lund., n31 nr.6 p 44 

 t. f. 1- (i. 



Peraeon segment 7 and pleon segments 1 and 2 each produced dorsally 

 iuto a large central tooth, with a feebler one on either side of it. Pleon 

 segment 3 with an elevated keel, not dentate but strongly rounded behind, 

 Side-plates 1 — 3 (infigure) very much smaller than the 4*^^ Pleon segment 3, 

 postero-lateral corners produced to an acute tooth, the lateral margin above 

 tbrming a truncate lobe with serrate margin, ending in a tooth above. Eyes 

 large, oval or slightly reniform, dark with a lighter rim. Antenna 1, 1^* Joint 

 rather longer than 2^, S^ about 7^ as long as 2*^, outdrawn in a laminar calceoli- 

 ferous process to middle of P^ Joint of flagellum, which Joint is as long as 6 or 

 7 of the following short joints. Antenna 2 as long as the body, twice as long as 

 antenna 1, penultimate Joint of peduncle as long as ultimate, outdrawn at apex. 

 Mouth-parts as in H. fulvocinctus, but 3<^ Joint of mandibular palp even 

 raore strongly developed. Gnathopods 1 and 2, 6*1^ Joint as long as 5*^, 

 but considerably wider, widening towards the oblique palm. Gnathopod 2 

 rather weaker than gnathopod 1. Uropod 3. rami without setae. Telson 



