Marine Copepoda 5 K 



Station 27 t, u: same locality and depth as preceding, October 4 and 5, 1913. 

 The following assemblage (table IV) was taken through a crack in the ice, one 

 to two feet below the surface, with net No. 3: 



TABLE IV (STA. 27 1, u). 



Calanus finmarchicus IV, V and 9 ( 10 



Calanus hyperboreus IV and V 4 



Pseudocalanus elongatus > . . . 54 



Limnocalanus grimaldii (<? and 9 ) 10 



Oithona similis 20 



Onccea conifera 2 



100 



In addition there was an Ectinosoma, a Pseudobradya and an Acartia. The 



presence at this station of Limnocalanus is of particular interest, as will be detailed 



more fully below. One C. finmarchicus 9 measured 4.25 mm., another 4.5 mm. 



Station 27y2: Entrance of lagoon at Collinson point; depth 1 to 2 feet 



inward current, no ice, net No. 3, fifteen minutes, October 8, 1913. 



TABLE V (STA. 27y#). 



Calanus finmarchicus IV 1 



Calanus finmarchicus V 7 



Calanus finmarchicus 9 1 



Calanus hyperboreus V 1 



Pseudocalanus elongatus III 10 



Pseudocalanus elongatus IV . 20 



Pseudocalanus elongatus V '. 30 



Pseudocalanus elongatus 9 10 



Gaidius (immature) 10 



Oithona similis . . 10 



100 



Station 29e: 70 3' N., 141 W., depth 25 fathoms, April 2, 1914. Three 

 vertical hauls with net No. 3, from 0-20 fathoms, through crack in ice, yielded 

 one C. finmarchicus 9 and two or three immature male Pseudocalanus. 



Station 290: 70 20' N., 140 30' W., depth 150 fathoms, April 6, 1914. 

 Several vertical hauls were made, at various depths with plankton net number 

 5 1 through cracks in the ice. The captures comprised C. finmarchicus, young 

 and adult, including a female of 5-5 mm., and a male of 4-5 mm., in company 

 with Calanus hyperboreus, Pseudocalanus elongatus, Euchaeta norvegica (see 

 below), Metridia longa and Oithona similis. 



Station 41s: Bernard harbour (inner harbour), Dolphin and Union strait, 

 temperature 35-3 F., net No. 3, ten minutes at surface, August 24, 1915. 



TABLE VI (STA. 41s). 



Calanus finmarchicus I-V 22 



Calanus hyperboreus V 1 



Pseudocalanus elongatus 60 



Eurytemora herdmani 2 



Oithona similis 12 



Idycea furcata 1 



Danielssenia stefanssoni 2 



100 



The absence of adult Calanus is to be noticed. One Eurytemora carried 

 an ovisac. The C. hyperboreus V (the stage preceding maturity) measured 

 6 mm. in length and the fifth foot had 15 coxal teeth. One C. finmarchicus V 

 of 4 mm., had 28 coxal teeth at the base of the fifth foot. At stage 1 there are 



1 Vertical net, 12 inches across mouth, end open 3 inches wide, with brass bucket and silk-net bottom; 

 length 3| feet, the upper half made of canvas. 



