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 

 strongl}' 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). 

 Ejnmcria loricata, G. O. Sars, Crust. & Pycnog. nova in itinere 2(io et 3tio Exped. 



Norv. collecta, No. 26. 

 Syn. : Epimeria cornigera, Verrill 

 ,, ,, conspifua, Stebbing. 



Body comparatively less tiimid 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 tlie tijo, 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 tlie 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 

 antennse somewhat exceeding Vi of the length of the body, 1st joint of the 

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

 as the peduncle. Inferior antennse 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 

 distalh'. 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 



