116 



teiinse in male moditied in a ([uite similar manner as in tlie preceding species. 

 Epistomal plate not quite so large as in that species and obtusely rounded 

 in front. Anterior gnathopoda with the basal joint considerably longer tliaii 

 tlie remainder part of the leg, propodos about tlie length of the carpus and 

 slightly dilated distally. Posterior gnathopoda less slender, carpus consider- 

 ably expanded in its outer part, propodos somewhat stronger than in the 

 preceding species and provided dorsally with 3 rows of setae. Posterior per- 

 eiopoda rather feeble in structure, 3rd jiair very small, with the l)asal joint 

 nearly elliptical and more broad than long, that of the last pair vei\y much 

 expanded and broadly oval in form; meral joint in none of the legs expanded. 

 Last pair' of uropoda in female with the rami somewhat broader tlian in the 

 pireceding sjiecies, the inner one scai'cely longer tlian the basal joint of the outer, 

 the latter with 2 bristles on the inner edge. Telson oblong triangular, 

 scarcely' twice as long as broad at the base; cleft narrow and extending far 

 beyond the middle. Colour bright carneous red. Length of adult female 

 11 mm. 



RemarJiS. — This form, which was erroneously referred l)y Boeck to 

 liis genus Orchomene, is evidently congeneric with the preceding species, 

 agreeing as it does pretty well in all essential points. Yet it is very easily 

 recognized from that species by several well marked characters, viz., by the 

 unusuall}^ high and compact bod}-, the very conspicirous lateral umboniform 

 prominence, the much feebler structure of the posterior pereiopoda, and finally 

 by the colimr of the body. 



Occurrence. — Unlike the preceding species, this is evidently a genuine 

 northern form, rarely occurring out of the Arctic region. I have found 

 it in several j^laces both off the coast of Finmark and off the Lofoten isles 

 in depths varying from 30 to 100 fathoms. Tlie southernmost place where I 

 have met with it is at Bronosund in Nordland. 



IJislrihution. — Ai'ctic Ocean: Spitsbergen (Groes), the White" Sea 

 (.larzj-nsky), Stat. 4S and 124 of the Norwegian North Atlantic Expedition. 



Gen. 30. EuOnyx, Norman, IBfiG. 



Body robust, with ratlier finn integuments and lai'ge coxal plates. 

 Superior antennae of moderate size and provided with a well developed acces- 

 sory appendage. Inferior antennae in female mueli longer than the superior. 



