96 College of Forestry 
occasional boulder. 
The vegetation is arranged zonally, the 
following species being present: 
Black Willow (Saliv nigra var. 
falcata). 
Swamp Loosestrife (Decodon ver- 
ticillatus) . 
Narrow-leaved Cat-tail (T7'ypha 
angustifolia) . 
Buttonbush (Cephalanthus  occi- 
dentalis). 
Bur-reed (Sparganium eury- 
carpum). 
Toward the lake scattered 
occur. 
Sweet-scented Water Lily (Castalia 
odorata). 
Cow Lily (Nymphwa advena). 
Broad-leaved Arrow-head (Sagit- 
taria latifolia). 
Pickerel-weed  (Pontederta cor- 
data). 
Lake Bulrush (Seirpus  occi- 
dentalis). 
American Bulrush (Scirpus ameri- 
canus) . 
plants of lilies and pond-weed 
Floating Pond-weed (Potamogeton 
natans). 
Animal life is abundant on the bottom or on the stems 
and leaves of vegetation. 
This type is a favorable habitat 
for fish, affording good feeding and probably good breeding 
grounds. 
as food by fish. 
Of the mollusks, upwards of 9 species are used 
ANIMAL LIFE. 
MOLLUSCA. 
Anodonta cataracta, not common. 
Elliptio complanatus, common. 
Spherium vermontanum, abundant. 
Spherium striatinum, rare. 
Pisidium variabile, abundant. 
Pisidium compressum, abundant. 
Pisidium compressum levigatum, 
abundant. 
Pisidium species, rare. 
Campeloma integrum, common. 
Gillia altilis, common. 
Amnicola lustrica, very abundant. 
Valvata bicarinata normalis, 
abundant. 
Planorbis campanulatus, common. 
Planorbis hirsutus, rare. 
Physa ancillaria warreniana, com- 
mon. 
Galba catascopium, not common. 
INSECTA, 
Dragon-fly nymph (Gomphus sor- 
didus). 
Dragon-fly nymph (A/schna _ spec- 
les). - 
Caddis-fly larve (Helicopsyche 
borealis), abundant. 
Caddis-fly cases (Leptocella spec- 
ies), abundant. 
Caddis-fly cases (Molanna species), 
not common. 
Caddis-fly larve (Leptocerus 
species), rare. 
Caddis-fly larvee (Hydrophilid), 
rare. 
Caddis-fly larve (Phylocentropus 
species), rare. 
