Appendix B continued. 



Table B6. 

 Numbers of live mussels and clams taken in 50 

 0.5m samples on transect 8-11 from the fleeted area 

 of the Illinois River at Naples. 



Total Mean per S.D. 

 0.5 m z 



No. of Percent 

 Samples occur- 

 in which rence 

 species 

 occurred 



Fusconaia flava 

 Megalonaias gigantea 

 Amblema plicata 

 Quadrula quadrula 

 Quadrula pustulosa 

 Quadrula nodulata 

 Arcidens confragosus 

 Lasmigona complanata 

 Anodonta grandis 

 Anodonta imbecillis 

 Obliquaria reflexa 2 

 Truncilla truncata 1 

 Truncilla donaciformis 149 

 Leptodea fragilis 28 

 Proptera alata 3 



Proptera laevissima 6 

 Lampsilis teres 

 Unidentified 3 



2 



1 



47 



18 



3 



6 



4.0 



2.0 



94.0 



36.0 



6.0 



12.0 



Total Mussels 

 Musculium transversum 

 Corbicula fluminea 



