| Specimen ID | 1320593 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | IL |
| County | Madison |
| Locality | Mississippi River, RM 201, 7 mi N Alton, Melvin Price L&D |
| Mapping Accuracy | Accurate |
| HUC8 Name | Peruque-Piasa |
| HUC8 Number | 07110009 |
| HUC10 Name | Portage Des Sioux-Mississippi River |
| HUC10 Number | 0711000904 |
| HUC12 Name | City of Alton-Mississippi River |
| HUC12 Number | 071100090402 |
| Map | |
| Collection Day | 10 |
| Collection Month | 9 |
| Collection Year | 1991 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Reference 1 |
| Ref. Number: | 28787 |
| Author: | Vinsel, R., and J. Tiemann |
| Date: | 2016 |
| Title: | Exotic aquatic mollusk collections in the Illinois Natural History Survey. |
| Publisher: | Illinois Natural History Survey |
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| Record Type | Specimen |
| Disposal | INHS |
| Museum Cat Number | INHS 13138 |
| Verifier | K.S. Cummings 5/1992 |
| Freshwater/Marine | Freshwater |
| Number Collected | 21 |
| Number Preserved | 3 |
