SEA-FISHERIES LABORATORY. 257 



appears for the first time in our records late in August, 

 and remains fairly constantly present but never very 

 abundant throughout the autumn and winter until 

 January, when it disappears. During the first few weeks 

 it is only in the offshore hauls, appearing first out in 

 mid-channel on August 24th in the Hensen and Nansen 

 nets that were let down to 60 fathoms and hauled up 

 vertically. As specimens were present in all the nets 

 that were closed when they had been pulled up to 45 

 fathoms and were not present in the surface and other 

 nets used above that level, it is evident that this Copepod 

 was on its first appearance only in the deep water in 

 mid-channel. It was encountered next on August 26th, 

 in the weighted net hauled at 10 fathoms, on the inner 

 edge of the Train Bank, some eight miles oft' land. On 

 August 31st it made its appearance at Station I in the 

 Hensen and Nansen nets hauled up from 24 fathoms, and 

 in the weighted net from 10 fathoms — the latter having 

 350 specimens. It was also present on September 2nd 

 and 3rd, under the same circumstances. On September 

 4th we again found it in mid-channel in the vertical nets 

 which had been down to 60 fathoms ; it was still not 

 present in the surface nets nor in the inshore waters. 



On September 6th, Microcalanus appeared for the 

 first time inshore, at Station IV, off the Calf Island, but 

 only in the Hensen and Xansen nets which had been 

 closed at 8 and 15 fathoms respectively ; it was not 

 present in the surface hauls taken at the same time. It 

 was next met with on September 11th, at Station Y, south 

 of the Calf Sound, inside the Wart Bank, when 100 

 specimens were taken in each of the two surface nets, 

 150 in the weighted net at 10 fathoms, and 5, 5, 5, 3, in 

 the four vertical nets (2 Hensen and 2 Nansen) hauled 

 from 20 up to 10 fathoms. It had evidently become 



