Zoogeographical Investigations in Southern Greenland. 283 
In pl, the 1. jomt resembles most the corresponding one in the ¢ 
mentioned above, but the 6. joint is more obliquely cut, nearly cor- 
responding to that in the ? (Nr. 2). In p2, the 1. joint is of the same 
shape as in Sars’ figure of P. Nanseni. P3 is exactly like that corre- 
sponding in Nr. 1—2. In p4, on the other hand, the 1. joint is narro- 
wer, and the lower posterior corner more rounded. P5—p7 agree very 
well with Sars’ figures, but the 2. joint im p7 is comparatively short 
and broad, the dactylus on p5—p7 somewhat too heavy. With regard 
to the uropoda there is nothing to remark save that the spinous arran- 
gement is even weaker than in Nr. 1—2. The outer ramus of urop. 3, 
Fig. 24. Pseudalibrotus Nanseni Nr. 4. 
however, has a single long ciliated seta. Telson exactly as in Sars’ 
figure. 
St. 118, specimens Nos. 4—) (Fig. 24), 8mm. Specimens 4—5 
appear to be exactly alike; I have therefore only dissected the one. 
Sex I was unable to determine. The 3. epimeral plate in the metasome 
is of the same shape as in Nr. 1 and 3. 
Despite the small size of the specimen, the antennae, especially 
ant. 1, are longer, and joints far more numerous than in Nr. 3; in ant. 
1, the flagellum has 35, and the accessory flagellum 3; in ant. 2, the 
flagellum has 44 joints. In both pairs of antennae the joints of the fla- 
gellum are remarkably short. Pl is as in Nr. 3. In p2 the 1. joint is as 
in Nr. 1, but the arrangement of the setae on the 5. and 6. joints is stron- 
ger, about the same as in Nr. 2. P3 as in Nr. 1—3. In p4, the 1. joint 
(vide fig. 24) is of almost the same shape as in Nr. 3, but slightly broader. 
