203 

 4. Stegocephaloides auratus, G. Sars. 



(PI. 70, fig. 3). 

 Stcc/oce2)kalns auratus, G. O. Sars, Oversigt af Norges Crustaoeer, I, p. 86, PL 3, fig. 8. 



Body still shorter and more pulpy than in the preceding species. 

 Cephalon with a very short and obtuse rostral projection , lateral corners 

 somewhat produced, and narrowly rounded at the tip. Coxal plates very 

 large; 4th pair nearly twice as deep as the corresponding segment, its depth 

 much greater than the breadth, distal edge forming inferiorly a distinct angle. 

 Last pair of epimeral plates of metasome somewhat produced at the lateral 

 corners, tip minutely serrated. Antennae about as in the preceding species, 

 saving that the 1st joint of the flagellum of the superior ones, is somewhat 

 smaller, and the accessory appendage longer. Gnathopoda likewise of much the 

 same structure. Last pair of pereiopoda considerably shorter than the pre- 

 ceding pair, basal joint very large, much longer than the remaining part of the 

 leg, posterior edge evenly convex, and serrated throughout, deflexed lobe tapering 

 to a sharp point which reaches almost to the end of the carpal joint, propodos 

 shorter than the 2 preceding joints combined. Telson subtriangular, outer part 

 considerably narrowed, cleft extending beyond the middle. Body semipellucid, 

 with a broad orange-coloured band, occupying the greater part of the rnesosome 

 and corresponding coxal plates. Length of adult female scarcely exceed- 

 ing 5 mm. 



Remarks. - - Though very nearly allied to St. christianiensis, this species, 

 when alive, is at once distinguished by the very different colouring of the 

 body. It is moreover of much smaller size, and has the 4th pair of coxal 

 plates considerably deeper in proportion to their breadth, and the last pair 

 of pereiopoda somewhat different in shape. 



Occurrence. - The species seems to be very rare off the coast of 

 Norway. I have only found it in a few places, viz., at Sunde in the Hard- 

 angerfjord, at Magero, west coast of Norway, and at Bejan in the outer 

 part of the Trondhjemsfjord. It occurred in all the localities, quite solitary 

 in depths varying from 80 to 200 fathoms. Out of Norway, it has not yet 

 been recorded. 



Gen. 3. AspidOpleurUS, G. 0. Sars, n. 



Body somewhat more slender than in the 2 preceding genera, with 

 the back less strongly curved. Cephalon and the 3 anterior pairs of coxal 

 plates about as in Stegoceplialus. Fourth pair of coxal plates of enormous 

 size, posterior expansion very large and broad, rounded at the tip, and 



