Appendix B. Concluded 



Order and species Feeding habits 



MOLLUSCA 



GASTEROPODA 



Ancylidae (limpets) 



Ferrissia sp . 

 Hydrobiidae (snails) 



Amnicola sp. 

 Lymnaeidae (pond snails) 



Lymnaea sp. 0,S 



Physidae (pouch snails) 



Physa sp. 0,S 



Planorbidae (orb snails) 



Helisoma sp . 



Gyraulus sp. 



PELECYPODA 



Sphaeriidae (fingernail clams) D 



Pisidium sp. 

 Musculium sp. 



5-B-6 



