261 







produced, propodal joint fully as long as the 2 preceding joints combined. 

 Last pair of uropoda with the basal joint somewhat lamellar, and of quad- 

 rangular form, about the length of the 2nd, and armed with a single denticle 

 at the end. Telson scarcely twice as long as it is broad, and quite unarmed, 

 tip bluntly rounded. Colour in the living state of the animal not yet 

 stated. Length of the specimen examined 3 mm. 



Remarks. The specific name affmis, proposed for this form by its 

 detector, Boec'k, is somewhat inappropriate, since the present species is, in 

 fact, a most distinct one, scarcely at all resembling any other of the known 

 Norwegian species. The figures here given are drawn from Boeek's type 

 specimen, which by dissection was found to be a male. Dr. Hansen has 

 recorded a very nearly allied form from Greenland, under the name of M. 

 latimana. Having recently had an opportunity, through the kindness of 

 that naturalist, to examine his type specimen, I find it, in fact, to agree so 

 closely in all essential characteristics with the one here described, that 

 I have little doubt that both belong to the very same species. True there 

 is, as mentioned by Dr. Hansen, a slight difference in the form of the 

 gnathopoda, but this may, at least as regards the posterior ones, arise from 

 the sex being different in the 2 specimens in question, that of Boeck 

 being a male, whereas that of Hansen most probably is a female. 



Occurrence. The type specimen of Boeck was collected in the 

 Christian] afjord. That author records it also from two other localities, 

 viz., Hvitingso, west coast of Norway, and Skraaven, Lofoten Isles. 



Distribution. -'? Greenland (Hansen). 



18. Metopa Bruzelii (Goes). 



(PI. 92, fig 1). 



Montcigua Bruzelii, Goes, Crust. Amph. marls Spitsbergiam alluentis, Ofvers. Kgl. svenska 

 Vetensk. Akad. forbandl. 1865, p. 522, PI. XXXVIII, fig. 10. 



Body moderately slender, and somewhat compressed. Cephalon but 

 little longer than the 1st segment of niesosome, lateral corners angular at 

 the tip. Coxal plates of moderate size ; 2nd pair obtusely rounded at the 

 tip; 3rd pair scarcely twice as deep as the corresponding segment; 4th pair 

 much broader than they are deep, distal edge obliquely curved. Last pair 

 of epimeral plates of metasome distinctly angular at the lateral corners. 

 Eyes of moderate size, rounded, pigment dark red. Antennae comparatively 

 short, the superior ones scarcely exceeding in length the third part of the 

 body, 1st joint of the peduncle a little shorter than the cephalon, but longer 



i3 Crustacea. 



