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University of Calif oniiu Publications i)i Zuologij L^'oi- 22 



Table 2. — Organisms Per Cubic Meter in Plankton of 

 San Joacjuin River in 1913 — (Coidinued) 



Ceratium 



1"J13 hirundinella 



4/19 



4/26 



5/ 3 



5/10 



5/17 



5/24 



5/31 



6/ 7 12,800 



6/16 



6/21 



6/28 



7/ 5 



7/12 1,600 



7/19 



7/26 



8/ 2 



8/ 9 6,400 



8/15 



8/23 



8/31 12,800 



9/ 6 



9/13 25,600 



9/20 



9/27 



10/ 4 



10/11 



10/18 



10/26 



11/ 1 



11/ 8 



11/15 



11/22 



11/30 



12/ 6 



12/14 



12/20 



12/27 



Eu^lena 



1913 viridis 



1/ 5 



1/12 



1/19 



1/25 



2/ 2 



2/ 8 



2/15 



2/23 



3/ 1 



3/ 8 



3/15 



3/23 



3/29 



4/ 5 



4/13 



4/19 



4/26 



5/ 3 



5/10 



5/17 



Ccrcomonas Chlamydomonaa ChroniuHna 

 cras»ic-auda sp. sp. 



105,792 



3,200 



105,792 



3,200 



3,200 

 317,376 



105,792 



Flagellate 

 unidentified 



Hemidinium 

 nasutum 



1,600 

 3,200 



3,200 

 1,600 



3,200 



52,896 



3,200 



105,792 

 264,480 

 158,688 



"555,408 

 555,408 

 5,818,560 

 6,823,584 

 2,010,048 

 1,057,920 

 1,481,088 

 3,067,968 

 2,644,800 

 3,S()S,512 

 4,241,680 

 2,644,800 

 4,347,472 

 7,088,064 

 5,183,808 

 7,722,816 

 8,251,776 

 3,914,304 

 2,962,176 

 3,914,304 

 6,717,792 

 4,231,680 

 5,183,808 

 2,988,624 

 2,142,288 

 793,440 



Pandorina 

 morum 



400 



800 



4,800 



3,200 



12,800 



19,200 



3,200 



1,600 



3,200 



79,344 



79,344 



'3,266 

 1,600 



Dinobryoii 

 sertularia 



158,688 

 12,800 



12,800 



158,6SS 



3,200 



6,400 

 105,792 



i32;246 



i;600 



Peridinium 

 cinctum 



Eudorina 



cleKans 



3,200 



16,000 



6,400 

 3,200 



51,200 



25,600 



(U.OOO 



3,200 



105,792 



.502,512 



44,800 



317,376 



105,792 



1,481,088 



6,400 



19,200 



211,584 

 38,400 

 38,400 

 12,800 

 25,600 

 25,600 



105,792 

 105,792 

 52,896 

 52,896 

 3,200 

 52,896 

 12,800 



:;,2()(i 

 3,200 



Phacus 

 pleuronectes 



