| Specimen ID | 1613628 |
| Group | Crustaceans-Cladocerans |
| Genus | Cercopagis |
| Species | pengoi |
| Common Name | fishhook waterflea |
| State | IL |
| County | Cook |
| Locality | Chicago Sanitary and Ship Canal, at Western Avenue (Richard J. Daley Park boat ramp) |
| Mapping Accuracy | Accurate |
| HUC8 Name | Chicago |
| HUC8 Number | 07120003 |
| HUC10 Name | North Branch Chicago River-Chicago Sanitary and Ship Canal |
| HUC10 Number | 0712000301 |
| HUC12 Name | South Branch Chicago River-Chicago Sanitary and Ship Canal |
| HUC12 Number | 071200030107 |
| Map | |
| Collection Month | 9 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | unknown |
| Record Type | Personal communication |
| Verifier | Illinois Natural History Survey |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
