534 Illinois State Laboratory of Natural History. 



PROTOZOA. 



Dinohryon: 1 Ictiobus, yg, 

 Euglena viridis: 4 Notropis, yg. 

 E. acus: 3 Notropis, yg. 

 Actinosphcerium : 2 Ictiobus, yg. 

 Centropyxis : 1 Carpiodes, Apr. 



C. ecornis: 1 Notropis heterodon, July. 



Arcella: 1 Erimyzon sucetta, If in.; 2 yg.; 1 Carpiodes, yg.; 1 

 Ictiobus, yg. 



A. discoides: 1 Ictiobus, yg. 



A. vulgaris: 1 Ictiobus, yg. 



Difflngia: 1 Dorosoma cepedianum, July; 1 Notropis, yg.; 3 N. 

 heterodon, May, July; 1 Pimephales notatus, Aug.; 1 

 Campostoma anomalum, Aug.; 3 Moxostoma, yg.; 5 M. 

 macrolepidotum, 1^2| in., July, Aug.; 1 Erimyzon su- 

 cetta. If in.; 2 yg.; 4 Hypentelium nigricans, yg.; 2 Catos- 

 tomus teres, June, Aug.; 4 Carpiodes, Apr., Oct.; 1 yg.; 2 

 Ictiobus urus, Aug., Oct.; 2 I. cyprinella, July; 1 Noturus 

 gyrinus, Oct. 



D. globulosa: 1 Gambusia patruelis, Sept. 



VEGETABLE FOOD. 



Seeds: 3 Fundulus diaphanus, Oct.; 1 Semotilus atromaculatus, 

 July; 1 Notropis atherinoides, July; 2 N. megalops, Apr., 

 Aug.; 6 N. whipplei, Apr., June, Aug.; 3 N. heterodon, 

 May; 1 Moxostoma, yg.; 1 Ictiobus bubalus, Apr. 



Corn meal (distillery slops): 1 Dorosoma cepedianum, July; 

 1 N. whipplei, Aug.; 1 Moxostoma macrolepidotum, Sept.; 

 3 Ictiobus urus, Oct.; 4 I. cyprinella, Oct.; 2 Ictalurus 

 punctatus, Aug., Oct.; 1 Amiurus nebulosus, Sept.; 1 A. 

 marmoratus, Oct. 



Exogenw: 6 Notropis megalops, June; 1 N. hudsonius, June; 1 

 Ictalurus punctatus, Apr. 



Endogena': 1 Micropterus dolomiei, yg.; 3 Notropis megalops, 

 June, July. 



