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BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 4, NO. 3. 
47. Limnaea Limnophysa catascopium Say. 
On the lake beach at Lake Park and the flushing- tunnel pump- 
ing station, in the sand. Single dead shells were also obtained from 
the stream near the electric light plant, Wauwatosa. and Chicago 
avenue at Cabeen's farm. . These stragglers are insufficient to 
show that this species extends beyond the waters of Lake Michigan 
at Milwaukee. It would be interesting to know the depth of water 
which is the normal habitat, the beach specimens being all drifted 
material. 
47a. Limnaea catascopium Say, var. 
With the preceding occur shorter forms approaching L. 
emarginata. 
Limnsea (Limnophysa) emarginata Say. 
( ?) Kenosha, Mrs. E. C. Wiswall's list, under the name L. 
ampla, Say. ''Madison, Wis., I. A. Lapham ; Wisconsin. Lewis," 
Smith. Misc. Coll., VII, 53. "First of Four Lakes, Madison 
Wis., P. P. Carpenter," Baker. Bull. Chic. Acad. Sci., Vol. II, No. 
III. p. 195. For the habits of the var. mighelsi, Binney, see 
Naut. XIV, 8. Xot collected around Milwaukee. 
43. Limnaea (Limnophysa) caperata Say. 
Small swamp southwest of Humboldt Park and Honey 
Creek, near Layton Park ; north shore of Lake Winne- 
bago, west of High Cliff. Kenosha, Airs. Wiswall's list. Over- 
flow pond of Milwaukee river at Lindwurm, C. E. Brown, 1903. 
"Milwaukee, Wis., I. A. Lapham," Smith. Misc. Coll., VII, 57. 
Grades into the following nominal variety. 
48a. Limnaea caperata umbilicata Adams. 
Small pools near the Milwaukee river opposite the cement 
works ; Mud Creek, at North Milwaukee ; Honey Creek, near 
Layton Park, with intermediate forms ; hollow beside Chicago 
avenue, near Cabeen's farm ; small creek near Loomis road, Town 
Greenfield ; ponds at Howard's prairie and near St. Martin's, 
Town Franklin ; Sand Ridge Creek, near lake shore, Kenosha. 
49. Limnaea (Limnophysa) humilis Say. 
Milwaukee river at Lindwurm; Mud Creek at North Milwau- 
kee ; Menomonee river, near old Falk brewery ; Honey Creek, 
