230 



curved, lateral corners somewhat more produced. Second pair of coxal plates 

 rather narrow, and exhibiting only 2 small serrations on the obtusely pointed 

 tip; 4th pair rather large, considerably deeper than the corresponding 

 segment, and having the edges quite smooth. Last pair of epimeral plates 

 of metasome .less produced at the lateral corners than in the type species. 

 Eyes somewhat larger and more rounded, with the visual elements less 

 refractive, and the pigment of a light red colour. Antennae about as in the 

 preceding species, except that the flagellum of the inferior ones is compara- 

 tively snorter, and only composed of 6 articulations. Gnathopoda somewhat 

 more unequal, the posterior ones being considerably more slender than the 

 anterior, propodos in the former about the length of the carpus, that of the 

 latter much shorter, carpa] process not nearly so produced as in G. Sarsii, 

 and about of same appearance in both pairs. Pereiopoda comparatively 

 more slender, basal joint of the 3 posterior pairs very large and broad. 

 Uropoda and telson nearly as in G. Sarsii. Body whitish, pellucid, with 

 large irregular patches of a light red colour, partly extending down the 

 coxal plates and legs. Length of adult female nearly 5 mm. 



Remarks. Though very nearly allied to the preceding species, 



this form may on closer examination be readity distinguished, not only by 

 its considerably larger size, but also by the form of the cephalon, the light 

 red eyes, and the somewhat different structure of the gnathopoda. 

 When alive it is, moreover, at once recognized by the rather characteristic 

 colouring of the body. 



Occurrence. - Unlike the preceding form, this species is a true deep- 

 water form. I have, as yet, only met with it in a single locality, viz., at 

 Selsovik, off the Nordland coast, lying exactly within the polar circle. It 

 occurred here rather sparingly between the roots of Paragorgia arborea* in 

 a depth of 100 150 fathoms. 



11. Gitana rostrata, Boeck. 



(PI. 79, fig. 1). 

 Gitana rostrata, Boeck, Crust, amph. bor. & arct. p. 52. 



Body somewhat less robust than in the 2 preceding species. 

 Cephalon exceeding the length of the first 2 segments of mesosome combined, 

 rostrum rather produced, acuminate, and but slightly curved, reaching beyond 

 the basal joint of the superior antenna, lateral corners very little projecting, 

 and bluntly rounded. Second pair of coxal plates comparatively much 

 larger than in the 2 preceding species, and somewhat tapering in their 



