64 MK. THOMAS SCOTT ON THE 



during June and July 1897. One was taken on floe-ice, but the 

 others were dredged in depths ranging from 5 to 19 or 20' 

 fathoms. The variation in the armature of the rostrum may b 

 thus indicated : 



(1)|, (l)f, (l)|(2)|(l)|and(l)|; 



the number within parentheses indicates the number of specimens, 

 while the number above and the number below the line indicates 

 the number of teeth on the upper and lower margins of the 

 rostrum. One of the specimens in which the arrangement of the 



teeth of the rostrum is represented by ^ measured 65 millim. 

 in length. 



Grenus Scleroceangon, Sars, 1882. 



SCLEEOCBAIfGON BOREAS {Phipps). 



1774. Cancer boreas, Phipps (61 a), p. 190, t. 12. fig. 1. 



This was represented by one specimen, which was taken in ten 

 fathoms, off West Glacier in Griinther Sound, on September 9th,. 

 1896. 



SCHIZOPODA. 

 Genus Thtsan^oessa, Brandt, 1851. 



Thtsanoessa (?) NEGi-ECTA {Kroyer). 



1842. Thysanopoda neglecta, Kroyer (44), pi. 7. figs. ^a~d. 



Three specimens of !r7^;ysa%oessa were included in the collection 

 from Pranz-Josef Land : one was obtained in West Bay, Cape 

 Plora, on September 9th, 1896, and two near East Glacier, Cape 

 iPlora, on August 1st, 1897. The specimens appeared to belong 

 to T. neglecta, but were scarcely perfect enough to enable the 

 species to be satisfactorily determined. 



Genus Mtsis, Latreille, 1803. 



Mtsis ocflata (Fabricius). 



1780. (?) Cancer oculatus, O. Fabricius (28 a), n, 222, p. 245. 



A considerable number of specimens of this Mysis were 

 included n the Bruce collection. Various stages of develop- 

 ment were represented, but the majority of the specimens were 

 adult. They appear to have been all captured at the west end 

 of Northbrook Island, in the vicinity of Cape Flora. Several 



