262 



than the 2 succeeding joints combined, flagellum half as long again as the 

 peduncle, and composed of about 12 articulations. Inferior antennae scarcely 

 shorter than the superior, the 2 outer joints of the peduncle about equal- 

 sized, flagellum a little shorter than those joints combined. Anterior 

 gnathopoda of the usual structure, propodos about the length of the carpus, 

 and gradually tapering distally, inferior edge without any denticles. Posterior 

 gnathopoda not very strong, propodos in female about the length of the 3 

 preceding joints combined, oval in form, palm, somewhat oblique, and about 

 as long as the hind margin, from which it is denned only by a slight angular 

 projection, its edge quite smooth, saving the 2 usual spinules in front of 

 the lower angle; propodos of male considerably larger, though of a similar 

 form to that of the female. Pereiopoda moderately strong, last pair with the 

 basal joint rounded oval, meral joint produced beyond the middle of the 

 carpal one. Last pair of uropoda with the basal joint nearly as long as the 

 other 2 combined, and armed with 4 denticles. Telson fully twice as long 

 at it is broad, and armed with 2 pairs of strong dorsal denticles, outer part 

 tapering to an acute point. Body whitish pellucid, with a few small and 

 irregular patches of an orange or reddish pigment; ova in the marsupial 

 pouch bluish. Length of adult female 4 mm. 



Remarks. I cannot doubt that the above described form is the 

 true M. Bnizelii of Goes, agreeing as it does, in all essential characteristics, 

 with the description and figures given by that author. It was, moreover, 

 the only species of Metopa collected during the Norwegian North Atlantic 

 Expedition off the shores of Spitsbergen, from which tract also the original 

 specimens examined by Goes were derived. The species may, on closer 

 examination, be easily distinguished from those previously described, by the 

 rather regular oval form of the propodos of the posterior gnathopoda, and 

 by the very slight projection defining its palm below. 



Occurrence. I have met with this species rather abundantly in two 

 widely-distant localities, viz., at Bratholmen, west coast of Norway, and 

 at Hammerfest, Finmark. Moreover it is found not rarely in the Trond- 

 hjemsfjord, both in its outermost part, atBejan, and in its inner part, at Ven- 

 H83S. As a rule, it occurs in moderate depths, from 30 to GO fathoms, 

 especially among Hydroidae. 



Distribution. - Spitsbergen (Goes), Greenland (Hansen). 



