NO. 5.] ACCOUNT OF THE SPECIES. 19 



the propodal joint (see figs. 14 a, 15 a). Otherwise, these legs are remarkably 

 smooth, and have the basal joint scarcely broader than on the 2 anterior pairs. 



The branchial lamellae are comparatively small, and are present on the 

 posterior gnathopoda and the 4 anterior pairs of pereiopoda (see figs 1, 12, 

 13, 14). In the specimen examined, shght rudiments of incubatory plates 

 were present inside the branchial lamellae (see figs. 12, 13). 



The pleopoda are rather powerfully developed, and of normal structure. 



The uropoda (see fig. 16) exhibit the structure usually met with in 

 Hyperiids, the terminal rami being lanceolate in form, with the edges finely 

 serrulate (see fig. 17). The last pair do not differ from the 2 preceding ones, 

 except in the somewhat greater breadth of the basal part. 



The telson (ibid.) is oblong triangular in form, and quite simple, without 

 any armature. It does not reach to the end of the basal part of the last 

 pair of uropoda. 



Occurrence. This pecuHar Amphipod occurred in 6 different samples, 5 

 of which were taken along the eastern part of the route of the "Fram", 

 between latitudes 80° and SS**, the 6th much farther west, at about the 30th 

 degree of longitude, and near the 85th degree of latitude. In all the places, 

 the tow-net had been lowered to depths of between 100 and 300 metres. By 

 far the greater number of the specimens found are very small, and evidently 

 quite young. Only in one place were 2 larger specimens caught, one of 

 which is that here described. 



Distribution. Davis Straits, in lat. 72" N. (Bovallius). 



Fam. scmiD^. 



4. Scina horealis, G. 0. Sars. 



Some specimens of this easily recognizable form were found in 3 samples 

 collected towards the end of March and in the beginning of April, 1894, in 

 about the 80th degree of latitude, the tow-net having been lowered, in all 

 3 places, to a depth of 300 metres. 



Fam. LYSIANASSIDiE. 



Gen. CycloccMris, Stebbing. 

 Remarks. This genus was established in the year 1888 by the Rev. 

 Mr. Stebbing, to include a peculiar Amphipod from the Challenger Expedition, 



