359 



as I'leiistes glaJx'r. According to tliat author the I'aramphithoe cxigua of Goes 

 is identical with tlie present species. The same is evidently also the case 

 with I'arapleustes gracilis of Buchholz, though Dr. Hansen seems inclined to 

 regard this form as identical with the above-described Parampliifho'v brrvicornis 

 Gr. 0. Sars. From the 2 succeeding species the present form is easily distin- 

 guishable, bj' the spiniform projection of the basal joint of the superior an- 

 tennae, as also by the structure of the gnathopoda. 



Occurrence. — Off the whole coast of Finmark this species is very 

 frequently met with in rather shallow water among algse. Occasionally it 

 also occurs off the west coast of Norway, and according to Boeck also in the 

 Christianiafjord. 



Distribution. — Greenland (Buchholz), Spitsbergen (Goes), Iceland 

 (Torell), the Murmaii coast (Jarzynsky), Kattegat (Meinert). 



11. Parapleustes pulchellus, G. 0. Sars. 



(PI. 126, fig. 2). 

 Ampkitliopsis xmlcliella, G. O. Sars, The Norw. North Atl. Exped Crustacea I, p. 17.5, 



PI. XIV, fig. 6. 



Body comparatively less slender than in the preceding species, and 

 having the segments more sharply defined, though without any dorsal pro- 

 jections. Cephalon scarcely exceeding in length the first 2 segments of meso- 

 some combined, rostral projection very small, la,teral corners angular at the 

 tip, postantennal ones but very little produced. Anterior pairs of coxal 

 plates nearly as in the preceding species, except that the dentiform projection 

 at the infero-posteal corners is nearly obsolete, 4th pair narrowly truncated 

 at the tip, and having the posterior edge below the emargination rather 

 oblique; the 2 succeeding pairs with the posterior lobe much deeper than the 

 anterior. Last pair of epimeral plates of raetasome not produced at the 

 lateral corners, which are obtuse-angled. Eyes not very large, reniform, 

 pigment bright red. Superior antennae not quite as long as in P. glaber, 1st 

 joint of the peduncle without any spiniform projection, and scarcely longer 

 than the other 2 combined, flagellum about 3 times as long as the peduncle. 

 Inferior antennae scarcely more than half as long as the superior, the 2 outer 

 joints of the peduncle nearly equal-sized, flagellum not nearly twice as long 

 as the peduncle. Anterior gnathopoda rather slender, with the carpus com- 

 paratively large, nearly as long as the propodos, and having, below, a broad 

 setous expansion, propodos rather narrow at tlie base, and slightly widening 

 distally, palm much shorter than the hind margin and imperfectly defined 



