24 



COPEPODS OF LAST CRUISE OF CARNEGIE 



Between stations 13 and 14 

 August 8, 1928; 42° 27' N, 47° 06^5 W; 18 species 



Calanus minor c 



Corycaeus agilis r 



crassiusculus f 



Farranula carinata r 



rostrata r 



Macrosetella gracilis r 



Microcalanus pusillus f 



Microsetella norvegica r 



Oncaea media f 



minuta c 



venusta f 



Paracalanus parvus f 



Pleuromamma gracilis a 



Pontellina phimata r 



Pseudocalanus minutus c 



Sapphirina angusta f 



Temora longicornis 4 



stylifera f 



This nocturnal surface tow yielded 7 species that were not 

 found at either of the stations between which it was taken. 

 On the other hand, 25 of the species obtained at one or both 

 of those stations were not present in this surface tow. This 

 tow was taken during the first part of the night, from 6''41'" 



P.M. to 12''50™ A.M. At stations 8 to 13 neither Corycaeus, 

 Farranula, nor Oncaea was present; all three were found in 

 this tow, and the two latter genera were taken also at station 

 14, and all of them later. This latitude may therefore be 

 taken as approximateh' the northern limit for these genera. 



Station 14 

 August 9, 1928; 42° 10' N, 47° 19' \V; bottom depth, 4154 m; 32 species 



Depth of tow, m 

 Temperature, °C 

 Salinity, o/oo 



Acartia longiremis 



Aetideus armatus 



Calanus finmarchicus 



helgolandicus 



minor 



Calocalanus pavo 



styliremis 



Candacia norvegica 



Centropages furcatus 



hamatus 



violaceus 



Clausocalanus arcuicornis. 



Eucalanus elongatus 



Euchirella brevis 



Farranula carinata 



rostrata 



Haloptilus longicornis. . 



Mecynocera clausi 



Microcalanus pusillus. . . 

 Microsetella norvegica. . 

 Neocalanus gracilis 



tenuicornis 



Oithona similis 



Oncaea venusta 



Paracalanus parvus 



Pseudocalanus minutus. 

 Rhincalanus cornutus. . . 



nasutus 



Sapphirina angusta 



Scolccithrix danae 



Temora longicornis 



stylifera 



This station, with the two which immediately follow, is in 

 the Gulf Stream, which was here crossed by the Carnegie 

 nearly at right angles. Consequently the surface temperature 

 was high, but fell ii per cent in the upper 100 meters; the 

 salinity and hydrogen-ion concentration, however, were prac- 

 tically constant at all three depths. In spite of the warmer 

 surface temperature, only 5 species appeared in the surface 



tow, whereas 20 were present in the SO-meter tow and 25 in 

 the 100-meter tow. Nineteen species (60 per cent) were con- 

 fined to a single depth and onh' 5 were found at all three 

 depths. Clausocalanus constituted the great bulk of the sur- 

 face catch, but was considerably less numerous at the two 

 lower depths. It is also worthy of note that every species was 

 represented by more than 5 individuals. 



