LISTS OF SPECIES BY STATIONS 



25 



Station 15 

 August 11, 1928; 38° 39' N, 48° 48' W; bottom depth, 5408 m; 34 species 



Depth of tow, m 

 Temperature, °C 

 Sahnity, 0/00 



Acartia longircmis 



Calanus minor 



Calocalanus pavo 



styhremis 



Candacia norvegica 



simplex 



Centropages furcatus 



violaceus f 



Clausocalanus arcuicornis a 



Corycaeus crassiusculus f 



lautus 



speciosus 



typicus 



Euchirclla brevis 



Farranula carinata f 



gibbula c 



rostrata f 



Haloptilus longicornis. . . . 

 Hetcrorhabdus papilliger. 

 Lubbockia aculeata 



squilhmana 



Lucicutia flavicornis 



Mecynocera clausi 



Microsetella norvegica. . . 

 Neocalanus gracilis 



tenuicornis 



Oithona similis 



spinirostris 



Oncaea minuta 



vcnusta 



Paracalanus parvus 



Pontellina plumata 



Rhincalanus cornutus. . . . 



nasutus 



This is the second of the three Gulf Stream stations. The 

 temperature at the surface was more than 3?5 higher than at 

 station 14, but fell only 20 per cent at the SO-meter level; 

 both the salinity and the hydrogen-ion concentration were 

 rather high and remained constant. Seven species were taken 

 at the surface and 32 in the 50-meter tow; 29 species, or 85 



per cent, were confined to a single depth, and only 5 were 

 found at both depths. This was the only Atlantic record for 

 Ltibbockia aculeata and one of three for Hetcrorhabdus papil- 

 liger. The 3 species of Farranula and 1 species of Corycaeus 

 were found at the surface; the other 3 species of Corycaeus, 

 with Oithona and Oncaea, were confined to the 50-meter tow. 



