Habitat numbers. 

 Field numbers. . . 



Distance from shore 

 Depth of water (in fa 

 Number of units (bot 

 Figures of animal life 



Algas 



Chmlophora incrassi 

 Cladophora fracta . 

 CEdogonium species 

 Spirogyra fluvialiU: 

 Tolipothrix limbala 



Mollusca. 



Goniobasis livescens 

 Amnicola bakerianc 

 Amnicola oneida . . 

 Valvata Iricarinata 

 Galba catascopium. 

 Planorbis anlrosus. 

 Planorbis binneyi, 

 Planorbis campanm 

 Planorbis hirsutus 

 Planorbis parvus. . 

 Planorbis trivolvis f 

 Physa warreniana . 

 Physa Integra 



Total Mollusca. 



Porifera 



Spongilla species . . 

 Turbellaria 



Planaria maculala . 

 Hirudinea 



Erpobdella punctata 

 ' Glossiphonia complc 

 Oligochaeta 



Slylaria species .... 



Enchyfrseidae 



Naididae 



Tubificidas 



Cladocera 



Acroperus harpcs. . . 

 Alona quadrangular 

 Campiocercus reclirc 

 Chydorus sphcericus 

 Eurycercus lamellali 

 Simocepkalus serrul 

 Decapoda 



Cambarus propinqu, 

 Ostracoda 



Cyprididae 



Amphipoda 



Hyallella knickerboa 

 Isopoda 



Asellus communis . 

 Ephemerida 



BcBtis species, nymi 

 Heptagenia species, 

 Odonata 



Argia putrida 



Trichoptera 



Agraylea multipunc, 

 Helicopsycht boreali. 

 Hydropiila species . 

 Molanna species,. . 

 Diptera 



Chironomus species 



Orlhoclaiius species 



Tanytarsus species . 



Lepidoptera 



\* Elophila species, !ar 



Coleoptera 



Psephenus lecontei, 1 



Total associated ; 



Total animal life 



