Food Relations of Fresh- Water Fishes. 527 



C. propinquus: 3 Lota raaculosa, Nov. ; 2 Micropterus dolomiei, 



June. 



C. immunis: 1 Micropterus salmoides, Oct. 

 C. obesits: 1 Amia calva, Apr. 

 Palamonetes exilipes: 1 Perca lutea; 1 Lepomis cyanellus; 1 



Amiurus natalis, 2 in., July. 



AMPHIPODA. 



Gammarus, yy. : 2 Alvarius punctulatus. 



Gammarusfasciatus: 1 Micropterus dolomiei, yg. 



Cnmyonyx: 1 Alvarius punctulatus, June; 1 Ictiobus cypri- 

 nella, July; 1 Amia calva, June. 



C. gracilis: 1 Umbra limi, Sept.; 1 Gambusia patruelis, Sept.; 

 1 Zygonectes notatus, June. 



Allorchestes dentata: 1 Roccus interruptus, May; 7 Perca lutea, 

 Mar., May, Aug.; 4 yg,; 1 Percina caprodes, Aug.; 5 

 Micropterus dolomiei, yg.; 2 Lepomis gibbosus, Aug.; 

 3 yg.; 8 L. pallidus, May, June, July, Aug.; 1 yg.; 2 L. 

 megalops, June; 1 Ambloplites rupestris, yg.; 1 Centrar- 

 chus irideus, yg.; 1 Aphredoderus sayanus, Oct.; 1 Esox 

 vermiculatus, yg.; 6 Fundulus diaphanus, June, Oct.; 1 

 Notropis megalops, May; 1 N. heterodon, May; 1 Placo- 

 pharynxcarinatus,0ct.; 1 Ictiobus velifer, Oct.; 1 Ictalurus 

 punctatus, May; 1, 4 in., June; 2 Amiurus, yg.; 1 A. 

 natalis, 2| in., July; 3 A. nebulosus, May; 9 Noturus 

 gyrinus, May, Aug., Oct.; 1 Amia calva, June; 1 Polyodon 

 spathula, May. 



ISOPODA. 



Asellus: 2 Uranidea richardsoni, Aug.; 1 Aplodinotus grun- 

 niens, Apr.; 1 Roccus chrysops; 3 Perca lutea, Mar., Aug.; 

 1 yg.; 2 Micropterus dolomiei, yg.; 2 Lepomis gibbosus, 

 May, Aug.; 4 L. pallidus, May, Aug.; 1 L. megalotis, June; 

 1 L. cyanellus, yg. ; 2 Apbredoderus sayanus, July, Aug.; 

 1 Esox vermiculatus, July; 1 Amiurus nebulosus, 3J in., 

 June; 2 Noturus gyrinus, June, Aug.; 1 Amia calva, June. 



Mancasellus tenax: 3 Perca lutea, Mar.; 1 yg. 



