0RJAN OLSEN 



[REP. OF THE "MICHAEL SARS" NORTH 



Fig. 7. Nymphon longituberculatus n. sp. 

 Palp (p) and false leg (f) of left side, s, chelifer, Sn, proboscis, /, first leg. 



fourth joints are nearly equal in length and somewhat 

 bent, fourth joint somewhat swollen at the distal end, 

 and furnished with a fringe of hairs (fig. 7); fifth joint 

 about half the length of the fourth, sixth joint about half 

 the length of the fifth; the succeeding three joints are of' 

 about the same length, and a little shorter than the sixth; 

 the end-claw short and slender. The inner margin of the 

 sixth and ninth joints is furnished with a row of tall papil- 

 lae (see fig. 8). 



The true legs are relatively short and well separated 

 (pi. I, fig. B). The three proximal joints are about equally 

 stout, (second joint the longest), and furnished with long 

 sparse hairs. The fourth joint is almost as stout as the 

 first three and furnished with sparse short hairs. The 

 rest of the joints taper outwards, are more densely covered 

 with hairs, the fifth joint being the longest, and some- 

 what swollen at its extremity; the sixth joint which tapers 



Fig. 8. 



Nymphon longituberculatus n.sp. 



Grasping apparatus forming tip of 



right false leg. 



Fig. 9. 



Nymphon longituberculatus n.sp. 



Terminal portion of left 



first leg. 



outwards, is a little shorter; the eighth joint is a little 

 longer than the seventh, and the end-claw about half the 

 length of the eighth joint, slightly curved (fig. 9); no 

 auxiliary claws. 



Boreonymphon G. O. Sars 1 



Boreonymphon robustum (T. Bell). 



Forty-six adult specimens, and many young ones of 

 different sizes, were taken at Stat. 102 in 1098 metres. 



There were 27 adult males and 16 adult females; 

 the sex of the half grown individuals could not be deter- 

 mined without dissection. Most of the adults were 12 to 

 14 mm in length, but one female was 22 mm and one 

 male 24 mm in length. The last mentioned carried eleven 

 big young ones (up to 8 mm in length), another carried 

 smaller ones (about 3 l /s mm in length) and a third car- 

 ried eggs. Several of the other specimens carried young 

 ones of different sizes, from about 1 mm (newly hatched) 

 to 5 mm in length. 



Attached to four of the largest specimens were para- 

 sitic amphipods, surrounded with a ball-shaped, grey, 

 clayey covering, about 6 mm in diameter, within which 

 they lay rolled up; after being straightened out, they 

 measured about 10 mm in length. They had attached 

 themselves to different places on the various individuals, 

 one being found under the abdomen, another behind the 

 pincers on one of its limbs, a third on the leg, and a 

 fourth on the egg-ball, only a small portion which was 



