Summary Narrative of an Exploratory Expedition to the Sources of the Mississippi River, in 1820 / Resumed and Completed, by the Discovery of its Origin in Itasca Lake, in 1832

by Henry Rowe Schoolcraft

LYMNEUS.

5. Lymneus umbrosus, Say, Am. Con. iv. pl. xxxi. Fig. 1. Lake Winnipec, Upper Mississippi, and Rainy Lake.

6. Lymneus reflexus, Say, l. c. pl. xxxi. Fig. 2. Rainy Lake, Seine River, and Lake Winnipec.

7. Lymneus Stagnalis. Lake a la Crosse, Upper Mississippi.

PALUDINA.

8. Paludina ponderosa, Say. Wisconsin River.

9. Paludina vivipara, Say, Am. Con. i. pl. x. The American specimens of this shell are more depressed than the European, but appear to be identical in species.

MELANIA.

10. Melania virginica, Say. Lake Michigan.

ANODONTA.