482 
Vegetation at the north end: 
Tris versicolor. Great Blue Flag. 
Cephalanthus occidentalis. Button-bush. 
MOLLUSKS. 
Musculium partumerum. Common. 
Planorbts trivoluis. Common. 
Ancylus parallelus. Common. 
Segmentina armigera. Common. 
INSECTS IN POND. 
Hydroporus undulatus. Water-beetle. 
Graphoderes liberus. Water-beetle. 
LOWER VERTEBRATES. 
The only aquatic vertebrate seen was the Western Painted Tor- 
toise (Chrysemys marginata), which was very abundant. 
AVES. 
The following birds were observed about the pond. 
Green Heron. 
Kingfisher. 
Red-headed Woodpecker. 
Flicker. 
Crow. 
STATION XX XIII. 
A large area in the woods, about four hundred feet north of 
Station XXXII, subject to periodic inundation. The area covered, 
appears to be two hundred feet long and thirty or more feet wide. 
The forest is quite dense, and is composed of the same kinds of trees 
as those recorded for Station XXXII. The wet area is sparsely 
covered with tall grass and reeds and other water-loving planes 
Among others, the following are conspicuous: 
Tris versicolor. Large Blue Flag. 
Cephalanthus occidentalis. Button-bush. 
Sparganium eurycarpum. Broad-fruited Bur-Reed. 
The mollusks noted below were observed: 
Planorbis trivoluis. Rare. 
Succinea avara. Common. 
Polygyra albolabris. A few observed under logs. 
