368 



recognized by its very pale, nearly pure white colour. It also distinguishes 

 itself, on a closer examination, by the nearly straight rostrum, the less 

 strongly developed 4th and 5th pairs of coxal plates, and the very slight 

 subdorsal keels, and finally, by the peculiar mammilliform shape of the 

 dorsal projection of the 1st segment of urosome. 



Occurrence. I have only met with this form quite solitary, in a few 

 places off the west coast of Norway, as also in the Trondhjemsfjord. The 

 specimens were in every case collected from rather great depths ranging 

 from 150 to 200 fathoms. 



4. Epimeria loricata, G. 0. Sars. 



(PI. 129, fig. 3). 

 Epimeria loricata, G. O. Sars, Crust. & Pycuog. nova in itinere 2do et 3tio Exped. 



Norv. collecta, No. 26. 

 Syn.: Epinieria cornigera, Verrill 

 ,, ,, conspicua, Stebbing. 



Body comparatively less tumid than in the other species, and having 



the integuments very strongly incrusted. Dorsal carina extending throughout 



the whole mesosome and metasome and elevated in all the segments to laminar, 



posteriorly pointing projections, obtuse at the tip, and successively increasing 



in size from front to back, that of last segment of metasome somewhat 



differing in shape from the preceding ones, being slightly depressed in the 



middle, and having the posterior part acutely produced; 1st segment of 



urosome with a similar, triangularly-pointed dorsal projection, in front of 



which there is a deep saddle-like depression. All segments of mesosome 



provided on each side, somewhat nearer the dorsal face, with an obtuse 



posteriorly-pointing tubercle, those of metasome each with 4 similar but 



somewhat smaller lateral tubercles. Cephalon produced in front to a very long, 



nearly straight rostrum extending even somewhat beyond the peduncle of the 



superior antennae. Coxal and epimeral plates nearly as in E. cornigera. Eyes 



not very large, rounded, and very prominent, pigment bright red. Superior 



antennae somewhat exceeding Y of the length of the body, 1st joint of the 



peduncle much larger than the other 2 combined, flagellum nearly 3 times as long 



as the peduncle. Inferior antennae somewhat longer than the superior, and of 



the usual structure. Gnathopoda comparatively stronger than in the other 



species, the propodos being longer than the carpus and considerably expanded 



distally. Last pair of pereiopoda with the basal joint much shorther than 



the remaining part of the leg, posterior edge considerably curved, infero- 



posteal corner but little produced. Last pair of uropoda with the rami rather 



broad, otherwise of the usual appearance. Telson a little longer than it is 



