Ecoregions
| ID | Realm | Major Habitat Type | Ecoregion |
|---|---|---|---|
| 116 | Nearctic | Large lakes | Laurentian Great Lakes |
| 117 | Nearctic | Temperate coastal rivers | St.Lawrence |
| 118 | Nearctic | Temperate coastal rivers | Northeast US & Southeast Canada Atlantic Drainages |
| 119 | Nearctic | Temperate coastal rivers | Scotia - Fundy |
| 120 | Nearctic | Temperate upland rivers | Columbia Glaciated |
| 121 | Nearctic | Temperate floodplain rivers and wetlands | Columbia Unglaciated |
| 122 | Nearctic | Temperate upland rivers | Upper Snake |
| 123 | Nearctic | Temperate coastal rivers | Oregon & Northern California Coastal |
| 124 | Nearctic | Xeric freshwaters and endorheic (closed) basins | Oregon Lakes |
| 125 | Nearctic | Temperate coastal rivers | Sacramento - San Joaquin |
| 126 | Nearctic | Xeric freshwaters and endorheic (closed) basins | Lahontan |
| 127 | Nearctic | Xeric freshwaters and endorheic (closed) basins | Bonneville |
| 128 | Nearctic | Xeric freshwaters and endorheic (closed) basins | Death Valley |
| 129 | Nearctic | Xeric freshwaters and endorheic (closed) basins | Vegas - Virgin |
| 130 | Nearctic | Xeric freshwaters and endorheic (closed) basins | Colorado |