| Specimen ID | 33587 |
| Group | Fishes |
| Genus | Neogobius |
| Species | melanostomus |
| Common Name | Round Goby |
| State | IL |
| County | Cook |
| Locality | Little Calumet River, at O'Brien Lock and Dam south of Lake Calumet (north of Calumet City) |
| Mapping Accuracy | Accurate |
| HUC8 Name | Chicago |
| HUC8 Number | 07120003 |
| HUC10 Name | Calumet Sag Channel-Little Calumet River |
| HUC10 Number | 0712000304 |
| HUC12 Name | Grand Calumet River-Little Calumet River |
| HUC12 Number | 071200030407 |
| Map | |
| Collection Year | 1995 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Comments | Received this report via USFWS, Onalaska, WI. |
| Record Type | Personal communication |
| Verifier | Sam Dennison, biologist, City of Chicago |
| Freshwater/Marine | Freshwater |
| Number Collected | 4 |
