;o CRUSTACEA MALACOSTRACA. IV. 



than one-third of the length; it has above behind the ocular lobe a few denticles (fig. 8 b) and below these 

 at the middle of each side two or three denticles; the antero-lateral corner below the base of the antennulae 

 is produced into a long, oblong-triangular, acute process; from this process the lower margin is serrated 

 almost to the posterior end, and nearly the anterior half of the saw-teeth are somewhat long and strong, 

 l>ut from before the middle to near the posterior end of the margin they are gradually smaller. Pseudorostrum 

 long, moderately upturned, with the upper margin slightly sinuate, the lower margin posteriorly a little con- 

 cave; this lower margin has 4 or 5 rather long, plumose setae, while 3 or 4 partly still longer setae are situated 

 close together on the side and above just behind the obtuse end. The free thoracic segments longer than 

 carapace without pseudorostrum; a distinct suture is observed between third and fourth segments on the 

 upper surface. Abdomen somewhat slender and of middle length ; fifth segment slightly longer than the sixth. 



Antennulae (figs. 8 b and 8 c) long; the peduncle reaches beyond the end of pseudorostrum; upper 

 flagellum nearly as long as third peduncular joint; lower flagellum as long as first joint of the upper. First 

 pair of legs of moderate length as in B. resima ; second joint (fig. 8 d) on the inner side with one very long, 

 spiniform process, two teeth and some minute denticles; exopod with half of the outer margin of the long 

 proximal joint serrated. Second pair of legs (fig. 8 e) proportionately very short; second joint with two good- 

 sized processes and a few minute denticles on the inner margin ; carpus only a little longer than the propodus, 

 which is as long as the dactylus. Third pair (fig. 8 f) very robust; second joint with a long, strong, acute, 

 a little curved, spiniform process on the anterior margin near the end ; merus more than twice as long as the 

 broad, short carpus, which has 7 very thick setae on the convex posterior (upper) margin; propodus small 

 with 1 similar seta. Fourth legs in the main as third pair, though somewhat shorter and still more robust, but 

 without any process on second joint ; fifth legs considerably smaller than the preceding pair, but rather similar 

 in structure. -- Uropods (figs. 8 a and 8 g) only a little shorter than the six abdominal segments together; 

 peduncle slightly longer than the two posterior segments combined, without spines, but with a few hairs 

 especially on the outer margin ; exopod even somewhat longer than the peduncle, with the inner terminal 

 seta thin and only a little shorter than exopod and peduncle together, while the outer terminal seta is consider- 

 ably shorter; the exopod is about three and a half times a long as the endopod, which consequently looks 

 nearly rudimentary, is 3-jointed, terminates in a rather long spine and has 2 spines on the inner margin. 

 Telson about two-thirds as long as the peduncle of the uropods, with the part behind the anal valves con- 

 spicuously shorter than the proximal part; this narrow part terminates in two long, pubescent spines, but the 

 lateral margins have no spines, only some 3 pairs of hairs, and the distal pair is somewhat long and robust 

 towards the base. 



Length of an ovigerous female 3.6 mm. 



Remarks. B. nimia, though allied to B. resima, differs in the outline of the carapace and especially 

 in shape and direction of pseudorostrum. Besides the uropods with their extremely long exopod and very 

 short endopod are very interesting and afford an excellent character. 



< >ccurrenee. Not taken by the "Ingolf", but by the Ilnd Amdrup-Expedition in a single locality. 



East Greenland: North of Stewart Land, ab. Lat. 70°3o' N., 158 fath. (29. VII, 1900); 2 ovigerous 



females. 



