The Relation of Mollusks to Fish im Oneida Lake 
139 
5. Species on leaves of two Water-lilies (Castalia odorata 
and Nymphwa advena). 
Acella haldemani, upper and under — 
sur ace, common. 
Pseudosuccinea columella, 
on upper side, common. 
Pseudosuccinea columella chalybea, 
mostly on upper side, common. 
Planorbis campanulatus, on upper 
and under sides, common, 
Planorbis trivolwis, on upper and 
under sides, common. 
mostly 
Planorbis 
rare. 
Physa ancillaria warreniana, wp- 
per and under side, common. 
Physa gyrina, a few on Nymphea * 
advena. 
Ancylus parallelus, under surface, 
common. 
Lymnea stagnalis lillian, egg cap- 
sules common on under suriace 
of leaf. 
hirsutus, under side, 
6. Species on stem of Water-liljes (Castalia odorata and 
Nymphea advena). 
Acella haldemani, rare. 
Lymnea stagnalis lilliane, rare. 
Planorbis campanulatus, common. 
Planorbis trivolvis, common. 
Bythinia tentaculata, common. 
7. Species on leaves and stems of Floating Pond-weed 
(Potamogeton natans)., 
Acella haldeman i, common. 
8. Species on submerged leaves on Elodea canadensis. 
Bythinia tentaculata, abundant. 
Physa ancillaria warreniana, com- 
mon, mostly young. 
Valvata bicarinata normalis, not 
common. 
Planorbis ca mpanulatus, common. 
Planorbis parvus, not common. 
Ancylus parallelus, not common. 
Amnicola lustrica, rare. 
9. Species feeding on green alge growing on stones, 
Lymnea stagnalis lilliane, com- 
mon. 
Planorbis binneyi, common. 
Planorbis trivolvis, var., common. 
Planorbis hirsutus, rare. 
Physa ancillaria warreniana, com- 
mon. 
Goniobasis livescens, common. 
B. Species Living on and Eating Dead Vegetation. 
10. On dead leaves of Narrow-leaved Cat-tail (Typha 
angustifolia). 
Ancylius fuscus, common. 
Planorbis trivolvis, common. 
Planorbis parvus, common. 
Planorbis exacuous, common. 
Lymnea stagnalis lilliana, rare. 
