| Specimen ID | 1655094 |
| Group | Coelenterates-Hydrozoans |
| Genus | Craspedacusta |
| Species | sowerbii |
| Common Name | freshwater jellyfish |
| State | MA |
| County | Middlesex |
| Locality | [Walden Pond State Reservation] By the sandbar at Bare Peak, 50-150 ft towards the center of the lake, approx 3-15ft deep |
| Mapping Accuracy | Accurate |
| HUC8 Name | Concord River |
| HUC8 Number | 01070005 |
| HUC10 Name | Sudbury River |
| HUC10 Number | 0107000501 |
| HUC12 Name | Hop Brook-Sudbury River |
| HUC12 Number | 010700050104 |
| Map | |
| Collection Day | 28 |
| Collection Month | 9 |
| Collection Year | 2020 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker with stocked fish | hitch hiker on aquatic plants |
| Status | established |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
| Number Collected | 100 |
