LISTS OF SPECIES BY STATIONS 



17 



Station 3 

 May 21, 1928; 44° 00' N. 36° 10' VV; bottom depth, 3738 m; 21 s[5ccies 



Depth of tow, 111 

 Temperature, ° 

 Salinity, 0/00 



Acartia longiremis 



Calanus helgolandicus , . . . 



minor 



Candacia bispinosa 



Centropages f urcatus 



Ciausocalanus arcuicornis. 



Eucalanus elongatus 



Farranula carinata 



rostrata 



Labidocera nerii 



Mecynocera clausi 



Oithona pluniifera. . . 



setiger 



similis 



Oncaea minuta 



venusta 



Paracalanus parvus. . 

 Rhincalanus nasutus. 

 Sapphirina angusta. . 



nigromaculata. . 

 Scolecithri.\ danae. . . 



Fifteen of the species (71 per cent) were confined to a single 

 tow; there were 13 species at the surface, 11 at 50 meters, and 

 6 at 100 meters, the last being an exceptionally small number. 



Only 4 species were common, 1 Oithona and 2 Oncaea at the 

 surface, and Scolecithrix at 50 meters. De\'elopment stages 

 were abundant at each depth but could not be identified. 



Station 4 

 May 23, 1928; 44° 39' N, ir 06' W; bottom depth, 2439 m; 14 species 



Depth of tow, ni 

 Temperature, °C 

 Salinity, 0/00 



Calanus helgolandicus, . . . 



minor 



Calocalanus pavo 



Ciausocalanus arcuicornis. 

 Drepanopus pectinatus. . . . 



Mecynocera clausi 



Oithona pluniifera 



Oithona similis c 



Paracalanus parvus f 



Pseudocalanus minutus r 



Sapphirina angusta r 



nigromaculata f 



stellata r 



Scolecithrix danae 



Seven species, or just half the entire number, were confined 

 to a single tow, and the vertical distribution was also un- 

 usually regular, with 8 species at each of the three depths. 



This is the only record for Drepanopus pectinatus, which was 

 confined to the 100-meter tow. The development stages were 

 found onlv in the 50-meter tow and could not be identified. 



