78 



COPEPODS OF LAST CRUISE OF CARNEGIE 



Between stations 63 and 64 (u) 



A. January 1, 1929, 3^ to 9" P.M.; 32° OS' S, 88° 58' \V 



B. January 1, 1929, 9" to \2^ p.m.; 32° 03' .S, 88° 55' \V 



C. January 2, 1929, 12" to 2'- a.m.; 32° 01' S, 88° 54' W 



50 species 



.ocation of tow 

 Volume of tow, cm^ 



ABC Location of tow 



48 48 32 Length of tow, miles 



A 



0.1 



B 



0.6 



C 



0.1 



Acartia danae 



negligens 



Acrocalanus gibber 



gracilis 



Calanus propinquus, juv. . 

 Calocalanus plumulosus. . . 

 Candacia aethiopica 



bispinosa 



norvegica 



simplex 



Centropages calaninus. . . . 

 Clausocalanus arcuicornis . 



furcatus 



Corycaeus agilis 



catus 



crassiusciilus 



pumilus 



Euchaeta acuta 



Euchirella brevis 



Farranula carinata 



concinna 



curta 



gibbula 



gracilis 



rostrata 



Megacalanus longicornis 5 



Microcalanus pusillus c 



pygmaeus f 



Neocalanus gracilis 



robustior f 



Oncaea media c 



mediterranea f 



minuta a 



notopa c 



subtilis 



tenella f 



venusta a 



Paracalanus aculeatus 



parvus c 



pygmaeus r 



Pleuromamma gracilis 



Poritella tenuiremis 



Pseudocalanus niinutus f 



Sapphirina angusta 



auronitens 



Scolecithricella bradyi f 



Scolecithrix danae f 



Undeuchaeta plumosa 3 



LIndinula caroli c 



darwinii a 



These are the first three of a series of nine surface tows taken 

 between stations 63 and 64 on three successi\e nights. Two 

 of the three here recorded were taken before midnight and 

 one just after midnight of the same night. These three tows 

 totaled 50 species, 39 in the first, 35 in the second, and 33 

 in the third tow. Sixteen species (32 per cent) were each con- 

 fined to one of the tows, and 23 species, or almost half, were 

 present in all three tows. Corycaeus, Farranula, and Oncaea 

 were again abundant at the surface in all three tows, and 



Megacalanus and Undeuchaeta reappeared from below. But 

 not a solitary specimen of any species of Oithona appeared. 

 In the tropics Candacia aethiopica is more often found in the 

 deeper tows than at the surface. Megacalanus and Undeu- 

 chaeta appeared here at the surface earlier in the night, the 

 first tow closing at 9 p.m., and Candacia aethiopica appeared 

 later, the second tow running to midnight. K\identiy a 

 definite time cannot be fixed for the appearance of any species 

 at the surface, since that time ma\- \-arv bv at least 3 hours. 



