226 



Nicippe, Synopioides 



ramiis little sliorter than inner; uropod 3 reaching beyond the others, rann 

 subequal, setose on inner margin. Telson narrow, deeply cleft. 



1 species. 



1. N. tumida Kruz. 1859 N. t., R. M. Bruzelius in: Svenska Ak. Handl., n. ser. 

 V.3 nr. 1 p. 99 t. 4 f. 19 | 1868 N. t., A. M. Norman in: Ann. nat. Hist., ser. 4 v.2 p.414 

 t. 21 f. 4— 6 I 1876 N. t, A. Boeck, Skand. Arkt. Amphip., v.2 p.492 | 1893 N. t., 

 G. Ü. Sars, Crust. Norway, v. 1 p. 410 t. 144; t. 145 f. 1 i 1893 K t, A. Della Valle in: 

 F. Fl. Neapel, v. 20 p. 658 t. 59 f. 66, 67. 



Back broadly vaulted, subdepressed, pleon segment 4 with 2 contiguous 

 very small dorsal teeth. Head, lateral corners angularly produced, tlieir 

 lower luargius continued backward as lateral projecting ridge. Side-plate 1 

 larger than any of the 3 following. Pleon segment 3, postero-lateral corners 

 quadrate. Eyes represented by yellowish pig-ment near lateral margins 

 of head. Antenna 1 in 9 long, slender, 1^* Joint as long as 2*^ and 

 3*^ combined, flagellum nearly 4 times as long as peduncle, 48-jointed, accessory 

 tlagellum with 3 or 4 joints, 1^* as long as others combined. Antenna 2 in Q , 

 ultimate and penultimate joints of peduncle equal, flagellum as long as 

 peduncle, 18-jointed. Antenna 2 in d, flagellum long, filiform. Gnatho- 

 pod 1, 6^^ Joint very large and tumid, palm not defined, but subchelate by 

 help of the long clasping finger. Gnathopod 2 like gnathopod 1, except that 

 the distal expansiou of o^^^ Joint is somewhat more promiuent and very 

 densely spinöse. Peraeopod 5 very elongate, 2'^ Joint behind submarginally 

 armed with 2 (Bruzelius; 1 Norman; not noticed by Boeck and Sars) long 

 strong setae, plumose on the distal half, üropod 3 large, peduncle thick, 

 setose ou outer margin, rami oblong lanceolate, inner margin fringed with 

 long setae, outer a little the longer. Telson nearly 3 times as long as 

 broad, cleft nearly to the base, the division dehiscent more at the 2 extremities 

 than in the middle, apices bidentate. Colour semipellucid, tinged yellowish 

 orange. L. 9 14 mm, ö rather less. 



Arctic Ocean, Nortli-Atlantic, North-Sea and Skagerrak (Norway, Shetland Isles, 

 Sound of Skye). Dejith 113 — 565 m. 



5. Gen. Synopioides Stebb. 



1888 Synopioides, T. Stebbing in: Rep. Voy. Challenger, v.29 p. 999 | 1893 S., 

 A. Della Valle in: F. Fl. Neapel, ^;. 20 p. 851. 



Side-plates very shallow. Antenna 1, peduncle 

 Short, flagellum long, accessory flagellum rather 

 long. Antenna 2 longer than antenna 1. Mandible 

 (Fig. 60), cutting edge broad, denticulate, accessory 

 plate on both mandibles, spine-row of 2 spines, palp 

 very long, 3*^ Joint linear, much shorter than 2*^. 

 Maxilla 1, outer plate with 8 long spines, palp 

 with 7 spine-teeth on distally widened 2'^ Joint. 

 Maxilla 2, inner plate fringed on inner margin, 

 rather shorter than outer. Maxillipeds, inner plates 

 small, conical, setiferous, outer small on a large 

 base, witli few fringing spines, palp long. Gnatho- 

 pods 1 and 2 simple, 5^^^ and 6* joints long, narrow. 

 Peraeopods 1 and 2 as in Pardalisca (p. 221), but 

 rather more slender. Peraeopods 3 — 5 elongate, 

 finger stiliform, üropod 1, rami equal; uropod 2, outer ramus much the 

 shorter; uropod 3, rami subequal, foliaceous. Telson deeply cleft. 



1 species accepted, 1 doubtful. 



Fig. CO. S. macronyx. 

 Mandibles and upper lip. 



