| Specimen ID | 276699 |
| Group | Fishes |
| Genus | Etheostoma |
| Species | blennioides |
| Common Name | Greenside Darter |
| State | MD |
| County | Montgomery |
| Locality | Potomac River, upstream and downstream ends of Plummers Island and Swainson Island area, just E of I-495 crossing, W side of Bethesda |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Potomac-Catoctin |
| HUC8 Number | 02070008 |
| HUC10 Name | Difficult Run-Potomac River |
| HUC10 Number | 0207000810 |
| HUC12 Name | Nichols Run-Potomac River |
| HUC12 Number | 020700081005 |
| Map | |
| Collection Day | 3 |
| Collection Month | 6 |
| Collection Year | 2010 |
| Year Accuracy | Actual |
| Potential Pathway | released bait |
| Status | established |
| Reference 1 |
| Ref. Number: | 20908 |
| Author: | North Carolina Museum of Natural Sciences. |
| Date: | 2011 |
| Title: | North Carolina Museum of Natural Sciences - Ichthyology Collection Database. |
| Publisher: | North Carolina Museum of Natural History. |
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| Record Type | Literature |
| Disposal | North Carolina Museum of Natural Sciences |
| Museum Cat Number | NCSM 60068 |
| Freshwater/Marine | Freshwater |
| Number Collected | 22 |
| Number Preserved | 22 |