98 



COPEPODS OF LAST CRUISE OF CARNEGIE 



Station 79 

 February 22, 1929; 12° 36' S, 112° 14' \V; bottom depth, 3090 m; 35 species 



Depth of tow, m 

 Temperature, °C 

 Salinity, o/oo 

 \'oIume of tow, cm^ 





 24.0 

 8.17 

 0.2 



50 

 24.5 

 8.17 

 0,8 



100 



25.6 

 8,14 

 0,8 



Calanus minor 



propinquus 



Calocalanus pavo 



Candacia simplex 



Corycaeus crassiusculus, . 



dubius 



longistylis 



speciosus 



Eucalanus elongatus 



Euchirella pulchra 



Farranula carinata 



rostra ta 



Haloptilus longicornis, . . . 

 Heterorhabdus papilliger. 

 Labidocera detruncata. . . 

 Lubbockia squilliniana. . . 

 Liicicutia clausii 



flavicornis 



c 

 f 

 2 

 f 



f 

 r 

 2 



2 

 1 

 f 

 f 

 1 

 1 

 1 

 2 

 3 



Mecynocera clausi 



Microsetella norvegica. . 



rosea 



Neocalanus gracilis 



robustior 



Oithona plumifera 



Oncaea minuta 



venusta 



Paracalanus parvus 



Pontellina plumata 



Pseudocalanus minutus. 

 Rhincalanus cornutus. . . 

 Scolecithricella bradyi . . 



Scolecithrix danae 



Undinula caroli 



darwinii 



vulgaris 



c 

 2 



f 

 f 

 f 

 f 

 f 



f 

 2 

 f 

 a 



1 

 c 



r 

 r 



The temperature, salinity, and hydrogen-ion concentration 

 ■were all high and showed comparatively little variation. 

 Eight species appeared at the surface, 31 in the 50-meter 

 tow, and 13 in the 100-meter tow. Twenty-one species (60 

 per cent) were each confined to a single tow and only 3 were 

 present in all three tows. The 50-meter tow was twice the 

 volume of the 100-meter tow and very little less than twice 

 the \olume of the surface tow, and contained four times as 



many species as the surface tow and more than twice as 

 many as the 100-meter tow. Only 1 of its species, however, 

 is recorded as abundant, and 3 as common; each of the others 

 was limited to a few individuals. In addition to being limited 

 to 8 species, the surface tow contained very few indi\iduals. 

 Similarly, 5 species in the deepest tow were represented by 

 single specimens and 5 others by 2 specimens apiece, and the 

 remaining 3 species were recorded as "few." 



