178 Wisconsin Academy of Sciences, Arts, and Letters. 



C. virilis. Hagen. 



C. propinquus. Girard. 



C. placidus. Hagen. 



C. rusticus. Girard, 



C. wiscoosinensis. Bandj. 



C. debilis. Bandy. 



C. gracilis. Bandy. 



C. bartonii. Erichson. 



C. obesus. Hagen. 



Family : Mysidce. 

 Mysis relicta. Loven. 



Order : Amphipoda. 



Family : Orchesiidce. 



Orchestes dentatus. Smith. 



Family: Lysianassidce. 



Pontoporeia hoyi. Smith. 

 P. filicornis. Smith. 



Family: Gammaridce. 



Gammaras limnteus. Smith. 

 G. fasciatus. Say. 

 Crangonyx gracilis. Smith. 



Order : Isopoda. 



Family : Assellidce. 



Asellus intermedius. Forbes. 

 Asellopsis tenax. Hagen. 



Order : Phyllopid^e. 



Family : BrancMpodidce. 

 Eabranchipus bandy i. Forbes. 



Family: Esther ladce. 

 Limnetis sp. ? 



