1920] 



Allen: Plankton, of the San Joaquin River 



249 



1913 



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 



5/24 



5/31 



6/ 7 



6/16 



6/21 



6/28 



7/ 5 



7/12 



7/19 



7/26 



8/ 2 



8/ 9 



8/15 



8/23 



8/31 



9/ 6 



9/13 



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 



Table 3. — Organisms Per Cubic Meter in Plankton of 

 Smith's Canal in 1913 — (Continued) 



Heterophrys Nuelearia Pinaciophora Raphidioplirys Total Ciliate 



fockei simplex Buviatilis elegans Heliozoa unidentified 



' 1,600 



3,200 1,600 



1,600 



211.5S4 

 211,584 

 211,584 

 211,584 



105,792 



423,168 

 317,376 

 2,962,176 

 211,584 

 105,792 

 52,896 



1,600 



52.S96 



317,376 

 317,376 

 105,792 



12,800 



1,269,504 

 528,960 

 423,168 

 158,688 

 105,792 



1,600 



79,344 



1,600 



41,600 



1,600 



105,792 



79,344 



264,480 



423,168 

 317,376 

 0S7,04.N 

 105,792 



52,896 

 687,648 



1,600 



79,:: n 



1,600 



25,600 



6,400 



41,600 



79,344 



1,600 



12.S00 



108,992 



79,344 



264,480 



634,752 



52.S,H(iO 



899,232 



317,376 



1,005,024 1,005,024 

 211,584 211,584 

 211,584 423,168 



423,168 

 541,760 

 3,173,760 

 1,798,464 

 634,752 

 476,064 

 211,584 

 799,840 



1,600 1,216,608 1,218,208 



52,896 



9,600 



12,800 



3,200 



Cyclidium 

 1913 sp. 



1/11 



1/19 



1/25 



2/ 2 



2/ 8 



2/15 



2/23 



3/ 1 



3/ 8 



3/15 



3,200 



Euplotes 

 harpa 



6,400 

 3,200 

 3,200 

 3,200 

 9,600 



Euplotes 

 patella 



9,600 



Halteria 

 grandinella 



3,200 

 3,200 



3,200 



