The Relation of Mollusks to Pish in Oneida Lake 53 
Zone B. In water, 15-30 inches deep. 
Water Willow (Dianthera ameri- Lake Bulrush (Scirpus occiden- 
cana). talis). 
Bulrush (Scirpus smithit). Pickerel-weed  (Pontederia  cor- 
American Bulrush (Scirpus amerv data). 
canus). 
Scirpus occidentalis and Pontederia occupy the deeper por- 
tions of the shore. 
All of the animal life was from Zone B on the sandy 
bottom. 
MOLLUSCA. 
Spherium vermontanum, common. Campeloma integrum, common. 
Pisidium compressum levigatum, Amnicola lustrica, common. 
common. Planorbis campanulatus, common. 
Pisidium species, rare. 
INSECTA. 
Caddis-fly cases(Molanna species). Caddis-fly cases  (Helicopsyche 
Caddis-fly larve (Leptocerus spe- borealis) . 
cies). Dragon-fly nymph (Gomphus sor- 
Caddis-fly larve (Hydroptila). didus). 
Station X. Poppyeut Bay, Bia Bay (Frerp No. 233). 
Poddygut Bay is a rounded indentation at the entrance to 
Big Bay. It is partly enclosed by Willow Point on the north 
and Poddygut Point on the south. These points are sandy, 
bouldery, and shallow. The bay is 5 to 7 feet deep and is 
filled with water plants. It is entirely surrounded by a deep 
swamp. The vegetation is zonal in arrangement. 
Zone A. Bordering the shore, water 1-214 feet deep. 
Buttonbush (Cephalanthus occi-  Pickerel-weed ea cor- 
dentalis) . data). 
Narrow-leaved Cat-tail (Typha an- Sedge (Carex trichocarpa). 
gustifolia) . Swamp Loosestrife (Decodon verti- 
Broad-leaved Arrow-head (Sagit- cillatus) . 
taria latifolia). 
Zone B. Nymphaea-Potamogeton association. 
Bulrush (Scirpus occidentalis) . Cow Lily (Nymphaea advena). 
Sweet-scented Water Lily (Cas- Floating Pond-weed (Potamogeton 
talia odorata). natans ) . 
