353 



7. Paramphithoe brevicornis, G-. 0. Sars. 



(PL 124, fig. 2). 

 Paramphithoe brevicornis, G. O. Sars, Oversigt af Norges Crustaceer, I, p. 98, PI. 4, fig. 11. 



Body comparatively stout and compact, with the back evenly rounded 

 and without any trace of dorsal projections. Cephalon about the length of 

 the first 2 segments of mesosome combined, rostral projection very slight, 

 lateral corners rectangular, postantennal ones but little produced. Anterior 

 pairs of coxal plates comparatively large, and nearly twice as deep as the 

 body; 1st pair slightly expanded distally, and partly covering the sides of the 

 cephalon as also the whole buccal area, infero-posteal corners of these and 

 the 2 succeeding pairs with a distinct dentiform projection; 4th pair broadly 

 truncated at the tip and having the posterior projection nearly rectangular. 

 Last pair of epimeral plates of metasome but little produced at the lateral 

 corners, the tip of which is obtusely pointed, posterior edge somewhat arched. 

 Eyes rather small, rounded, pigment dark red. Antennae unusually short; 

 the superior ones scarcely exceeding in length the cephalon and the first 3 

 segments of mesosome combined, 1st joint of the peduncle rather thick and 

 about the length of the other 2 combined, flagellum not attaining twice the 

 length of the peduncle, and composed of 12 articulations only. Inferior an- 

 tennas but little shorter than the superior, the 2 last joints of the peduncle 

 about equal-sized, flagellum scarcely longer than those joints combined. Gna- 

 thopoda rather powerful, and nearly exactly alike both in size and structure, 

 carpus in both pairs very short and produced below to a narrow linguiform 

 lobe, propodos very large, fully as long as the basal joint, and rather 

 expanded in the middle, palm about the length of the hind margin and 

 somewhat arched, having below 2 fascicles of strong spines, the posterior of 

 which issues from a distinctly projecting angle. Pereiopoda of moderate 

 length and very slender, sparingly edged with spines, basal joint of the 

 3 posterior pairs oval in form, that of last pair the largest, having the 

 posterior edge nearly straight and the infero-posteal corner obtusely trun- 

 cated. *Last pair of uropoda comparatively short, inner ramus exceeding 

 the outer by only 1 /a of its length, both having only a small number of 

 marginal spines. Telson oblong triangular in form, not nearly twice as long 

 as it is broad at the base, outer part tapering to an obtuse point. Body whitish, 

 more or less densely ornamented by a dark brownish violet pigment, which 

 sometimes extends all over the anterior part of the body together with the 

 coxal plates, thus giving the body a very dark hue. Length of adult female 

 scarcely attaining 4 mm. 



Remarks. This is a very distinct species, and easily recognizable 



