o18 
Lone Lake, AvuGusT—OctToBer, 1916. Borrom FAauNaA 
6 CoLLEctTIONS, LirrorAL Zony, 1 To 7 FT. SOME VEGETATION 
Number per square yard| Pounds per acre 
Sphaerium sp. 3.5 37) 1.7 1.7 
Chironomid larvae (small spp.) 3 
Hexagenia, etc. (nymphs) 11. 
Sand-case caddis larvae 8 
Caddis larvae (on Chara) 2 
Sialis larvae 
Gomphid nymphs 
Hyalella knickerbockeri 29. 
H 
50.7 
ran 
Fee pte ema cee 
NoOwnNr or 
5 
0 
5 
0 190.0 
2 
5 
3 
Total 193.5 
ol 
BS) 
> 
Sanp Lake, Aucust—OcToser, 1916. Borrom Fauna 
10 CoxLtections, LirroraL ZoNr, 1 To 5 FT. SoME VEGETATION 
Number per square yard| Pounds per acre 
Amnicolidae 2.2 0.1 
11.0 0.6 
Valvatidae 8.8 0.5 
Oligochaeta (small spp.) 2.2 0.1 
Chironomid larvae (small spp.) 13.2 1.8 
Sand-case caddis larvae 13.2 33.0 2.6 13.1 
Agrionid nymphs 2.2 11 
Gomphid nymphs 2.2 1.5 
Total 44.0 13.7 
