512 Illinois State Laboratonj of Natiiml History. 



Ictiohus: 1 Lepomis cyanellus, July; 2 Esox lucius, Nov.; 1 



Amia calva. 

 I. bnbalus: 1 Esox lucius, Sept. 

 Carpiodes: 1 Esox lucius, Nov. 



NEMATOGNATHI. 



Siluridce: 1 Stizostedion canadense, Nov.; 1 Micropterus sal- 



moides, Oct. 

 Amiurus: 1 Stizostedion canadense, Oct.; 1 Leptops olivaris, 



Aug. 

 Noturus fiavus : 1 Micropterus dolomiei; June. 



MOLLUSCA. 



GASTEROPODA. 



Fleurocera : 1 Ictalurus punctatus, Sept. 



Amnicola: 4 Lepomis gibbosus, May, July, Aug.; 1 L. notatus, 

 Sept.; 1 L. pallidus, Oct.; 2 Placopharynx carinatus, Oct.; 

 1 Moxostoraa, Nov.; 1 M. macrolepidotum, Sept.; 1 Miny- 

 trema melanops, Oct.; 1 Ictalurus punctatus, Oct.; 3 

 Amiurus nebulosus. May, Aug., Oct. 



Somatogyrus: 3 Moxostoma macrolepidotum, Sept. 



Valvata tricar inata : 1 Perca lutea, May; 2 Lepomis gibbosus, 

 May; 2 Notemigonus chrysoleucus. May; 1 Placopharynx 

 carinatus, Oct.; 2 Moxostoma macrolepidotum, Sept; 1 

 Ictiobus urus, Aug.; 1 Amiurus nebulosus, July. 



V. sincera: 1 Gambusia patruelis, Sept. 



Vivipara: 2 Lepomis pallidus, July, Nov.; 1 Moxostoma aure- 

 olum, June; 3 M. macrolepidotum, Sept., Oct.; 1 Ictiobus 

 bubalus, Oct.; 7 Ictalurus punctatus, Apr., Sept., Oct.; 2 

 Amiurus natalis, Oct.; 1 A. raarmoratus, Oct.; 1 Amia 

 calva, Aug. 



Melantho: 1 Moxostoma, Nov.; 3 M. macrolepidotum, Oct.; 

 7 Ictalurus punctatus, Sept., Oct.; 1 Amiurus natalis, Oct.; 

 1 A. nebulosus, Oct. 



M. decisa: 2 Aplodinotus grunniens, Oct. 



Lioplax subcarinata: 2 Ictalurus punctatus, Sept. 



Succinea: Perca lutea, Aug. 



