622 Megaiuphopus, Goesia 



Head, lateral lobes acutely produced. Side-plate 1 in 9 oblong, in ö witb 

 an acutely produced and deflexed apex; 2*^ — 4*^ subequal, with b^^ a little 

 less deep than 4*^ in 9 ; but in ö 2^ mucb larger than the rest, 4*^ smaller 

 than 3*^, not deeper than 5*^. Pleon segment 3, postero-lateral corners 

 broadly rounded. Eyes rather large, oval, dark brown. Antenna 1 less 

 than ^2 ^s long as body, 1^* Joint short and thick, as long as 3^, 2^ much 

 longer; flagellum 8 — 10-jointed; accessory flagellum consisting of 1 small Joint. 

 Antenna 2 rather longer, antepenultimate Joint of peduncle not very short, 

 ultimate rather longer than penultimate; flagellum 10-jointed. Upper lip 

 rounded, raiddle of margin truncate, bluutly produced in front. Maxilla 1, 

 inner plate with 1 apical seta. Gnathopod 1 in d, 2'^ Joint slender, 5*^ 

 nearly as long, stouter, bind margin ending in a small obtuse tooth; 6*^ shorter, 

 oblong oval, palm scarcely defined from short bind margin, finely crenulate, 

 set with spines; finger very long, compressed, its breadth nearly uniform 

 except at the ends. Gnathopod 2 in d considerably stronger, 2^ Joint 

 abruptly curved at base, 5*'^ stout, long, 6*^ somewhat stouter, longer, front 

 margin convex, bind straight, setose; the short palm with a median tubercle; 

 the finger similar to that of gnathopod 1, folding on to surface of 6*^ Joint 

 parallel and close to bind margin. Gnathopod 1 in 9 , 6*^ Joint nearly as 

 long as 5**', subfusiform ; palm but slightly defined; finger slender. Gnatho- 

 pod 2 in 9 not much stronger, 5*^ Joint as long as the tapering 6*^, in 

 which the palm is scarcely at all defined. Peraeopods 1 and 2 rather 

 compact. Peraeopods 3 — 5 more slender, 2^ Joint oblong oval, üropod 3, 

 rami longer than peduncle, outer shorter than inner. Telson subquadrate, 

 rather broader than long, with spine at each angle of base of the triangulär 

 apex. Colour whitish, pellucid, darkened by red and brown specks. L. 5 — 8 mm. 



Arctic Ocean, North- Atlantic and adjoining seas (from Lofoten Isles to the Bristol 

 Channel). Depth 11 — 56 m. 



7. Gen. Goesia Boeck 



1871 Goesia (Sp. un. : G. depressa), A. Boeck in : Forh. Selsk. Christian., 1870 

 p.231 I 1876 G., A. Boeck, Skand. Arkt. Amphip., v.2 p. 550. 



Head, lateral lobes little produced. Side-plates of medium depth, 

 5*^ not so deep as 4*^ the lower margin fringed with setae. Antenna 1 

 ,the longer, peduncle shorter than flagellum, accessory flagellum obsolete. 

 Maxillipeds (Goes, in figure), palp 3-jointed. Gnathopod 1 as in Leptocheii'us 

 (p. 625). Gnathopod 2 subchelate, but not strongly, setose, the 6*^ Joint as 

 broad as the 5*^' which is not very elongate. Otherwise as in Leptocheirus. 



1 species. 



1. G. depressa (Goes) 1866 Autonoe d., Goes in: Öfv. Ak. Förh., t). 22 p. 532 

 t. 41 f. 32 I 1871 Goesia d., A. Boeck in: Forh. Selsk. Christian., 1870 p. 231 | 1876 

 G. d., A. Boeck, Skand. Arkt. Amphip., v. 2 p. 550. 



Side-plate 1 naiTowed below, 2^ and 3^ deeper than 4*^ Pleon 

 segment 3, postero-lateral corners acutely produced. Eyes very small, oval. 

 Antenna 1 more than '^/g as long as body, 2^ Joint rather longer than 1^*, 

 3*1 small; flagellum 20 — 25-jointed, accessory flagellum not apparent in 

 figure. Antenna 2 much shorter; ultimate and penultimate joints of peduncle 

 subequal; flagellum 10 — 15-jointed. In the figure 3*^ Joint of mandibular 

 palp is longer than 2^, maxilla 1 has a long inner plate devoid of setae, 

 maxilla 2 has the inner plate not fringed on inner margin, and the maxilliped's 



