| Specimen ID | 1878457 |
| Group | Annelids-Polychaetes |
| Genus | Laonome |
| Species | xeprovala |
| Common Name | an euryhaline polychaete |
| State | IL |
| County | Mason |
| Locality | Illinois River, La Grange Pool, river mile 129 |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Illinois-Lake Chautauqua |
| HUC8 Number | 07130003 |
| HUC10 Name | Big Sister Creek-Illinois River |
| HUC10 Number | 0713000306 |
| HUC12 Name | Buckheart Creek-Illinois River |
| HUC12 Number | 071300030605 |
| Map | |
| Collection Month | 6 |
| Collection Year | 2023 |
| Year Accuracy | Actual |
| Potential Pathway | unknown | shipping ballast water | shipping hull fouling |
| Status | established |
| Reference 1 |
| Ref. Number: | 46114 |
| Author: | Pant, M., J.C. Dreyer, and J. Lamer |
| Date: | 2025 |
| Title: | First record of the euryhaline polychaete Laonome xeprovala (Sabellidae) from the U.S. Midwest |
| Journal: | Biological Invasions |
| Volume: | 27 |
| Issue: | 7 |
| Pages: | article 169 |
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| Comments | LTRM site: R12.RS; habitat type: main channel; depth: 1.9 m; predominant substrate: Most silt/clay with sand |
| Record Type | Literature |
| Freshwater/Marine | Freshwater |
| Number Collected | 3 |
