210 Wisconsin Academy of Sciences, Arts, and Letters. 
MOLLUSKS COLLECTED. 
Lymncea stagnalis lilliance. 
Planorbis campanulatus. 
Planorbis campanulatus rudentis. 
Physa ancillaria warreniana. 
Anodonta marginata. 
Lampsilis lubeola. 
Station XI. 
The southern end of Eagle Bay is very swampy, a condition 
due in large measure to the rising of the lake. The swamp is 
bordered by a Typha latifolia society. The water is shallow and 
is filled with floating logs, while stumps and trunks of dead trees 
are standing in profusion. The bottom is of carbonaceous mud 
and the open spaces are ocupied by a plant society consisting 
of Castalia odorata and Nymphoea advena. The pondweed 
(Potamageton) is also present. Lymncea columella lives on the 
under side of pond-lily leaves while Lymncea lanceata prefers 
the sandy, or muddy, shore in shallow water. 
MOLLUSCA COLLECTED. 
Lymncea columella. 
Lymncea lanceata. 
Station XII. 
An island, situated at the mouth of Eagle Bay. The shores 
are sandy and the water quite shallow. On the southeastern 
side of the island, where there is protection from the westerly 
storms, considerable driftwood has collected, which is inhabited 
by several mollusks. 
MOLLUSCA COLLECTED. 
Planorbis campanulatus rudentis. 
Planorbis bicarinatus striatus. 
Physa ancillaria warreniana. 
