1920] 



Allen: Plcmkton of the San Joaquin River 



257 



Table 3. — Organisms Per Cubic Meter in Plankton op 

 Smith's Canal in 1913 — (Continued) 



1913 

 11/22 

 11/30 

 12/ 6 

 12/14 

 12/20 

 12/27 



1913 

 1/11 



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 



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 



Brachionus 

 patulus 



Brachionus 

 plicatilis 



Brachioijus 

 urceus 



Filinia Filinia 



egg, attached, egg, attached, 



female male 



16,000 

 3,200 



22,400 

 6,400 



9,600 

 3,200 



3,200 



Filinia 

 egg, free 



6,400 



9,600 



185,136 



158,688 



79,344 



1,600 

 79,344 



9,600 



158,688 



132,240 



211,584 

 211,584 



"158,688 

 423,168 

 105,792 



211,584 

 105,792 



'211,584 



1,600 



1,600 



Diurella 

 egg, free 



Filinia 

 longiaeta 



800 



3,200 



1,600 



92,800 



44,800 



60,800 



57,600 



99,200 



32,000 



3,200 



3,200 



6,400 



1,600 



9,600 



6,400 



19,200 



3,200 



g^eoo 



3,200 



3,200 



105,792 



22,400 



12,800 



6,400 



12,800 



Epiphanes 

 clavulata 



Keratella 

 cochlearis 



4,800 



6,400 



3,200 



35,200 



60,800 



79,344 



80,000 



317,376 



634,752 



476,064 



238,032 



264,480 



502,512 



264,480 



423,168 



83,200 



79,344 



25,600 



687,648 



105,792 



32,000 



105,792 



264,480 



449,616 



1,824,912 



317,376 



44,800 



19,200 



6,400 



51,200 



25,600 



Epiphanes 



egg; attached, 



female 



Keratella 



egg, attached 



400 



4,800 



2,400 



3,200 



1,600 



19,200 



16,000 



9,600 



12,800 



132,240 



370,272 



211,584 



1,600 



52,896 



238,032 



52,896 



185,136 



6,400 



3,200 



3,200 



79,344 



3,200 



105,792 



16,000 



1,600 



19,200 



25,600 



