The Relation of Mollusks to Fish in Oneida Lake 47 
INSECTA. 
Caddis-fly larve  (Helicopsyche borealis). On stones, abundant. 
HIRUDINEA. 
Leech (Erpobdella punctata). Leech (Glossiphonia vomplanata). 
Leech (Placobdella rugosa). 
On the shelving shore of Zone 1 the dead shells of many 
clams were observed, showing that these animals are abund- 
ant on the sandy bottom of Zone 2. Four species were noted: 
Elliptio complanatus. Anodonta grandis footiana. 
Lampsilis radiata. Anodonta cataracta. 
Station TV. Mitton Point (Fietp No. 229). Fie. 11, 
Milton Point is a narrow, wedge-shaped piece of land ex- 
tending well into the lake. It is fully exposed to the winds 
and waves from the south and east. The land is quite low 
and is doubtless covered with water during storms and periods 
of high water. Shallow water extends for a considerable 
distance into the lake. 
Botrrom: Very bouldery on hard sand. Water: .1 to 2 
feet deep. 
VEGETATION, 
Bulrush (Scirpus americanus). Water Willow, rare (Dianthera 
americana). 
ANIMAL LIFE. 
MOLLUSCA. 
Elliptio complanatus, between Galba catascopwm, on stones, com- 
rocks, common. mon. 
Lampsilis radiata, between rocks, Planorbis antrosus, on stones, rare. 
common. Planorbis campanulatus, on stones, 
Gomiobasis livescens, on stones, rare. 
common. Physa ancillaria warreniana, on 
stones, rare. 
The last three mollusks (Planorbts and Physa) are evi- 
dently migrants from Station V. 
