| Procambarus acutus |
Whiteriver Crayfish |
|
| Caecidotea vandeli |
Vandel's Cave Isopod |
|
| Cambarus dubius |
Upland Burrowing Crayfish |
|
| Cambarus hatfieldi |
Tug Valley Crayfish |
Moderate |
| Ampelisca spp. |
Tube-dwelling Amphipod sp. |
|
| Stygobromus araeus |
Tidewater Interstitial Amphipod |
|
| Stygobromus indentatus |
Tidewater Amphipod |
|
| Cambarus dubius A |
Teays Burrowing Crayfish |
|
| Stygobromus borealis |
Taconic Cave Amphipod |
|
| Orconectes forceps |
Sturgeon Crayfish |
|
| Stygobromus stellmacki |
Stellmack's Cave Amphipod |
|
| Stygobromus spinatus |
Spring Cave Amphipod |
|
| Orconectes limosus |
Spinycheek Crayfish |
|
| Stygobromus mackini |
Southwestern Virginia Cave Amphipod |
|
| Eubranchipus intricatus |
Smoothlip Fairy Shrimp |
Moderate |
| Stygobromus gracilipes |
Shenandoah Valley Cave Amphipod |
|
| Ligidium elrodii scottensis |
Scott County Terrestrial Cave Isopod |
|
| Amphiporeia virginiana |
Sand Burrower |
|
| Lirceus culveri |
Rye Cove Isopod |
|
| Stygobromus sp. 6 |
Roundtop Amphipod |
|
| Stygobromus baroodyi |
Rockbridge County Cave Amphipod |
|
| Cambarus carinirostris |
Rock Crawfish |
|
| Stygobromus foliatus |
Rappahannock Spring Amphipod |
|
| Miktoniscus racovitzai |
Racovitza's Terrestrial Cave Isopod |
|
| Caecidotea pricei |
Price's Cave Isopod |
|
| Stygobromus paxillus |
Prettyboy Groundwater Amphipod |
|
| Amerigoniscus henroti |
Powell Valley Terrestrial Cave Isopod |
|
| Cambarus jezerinaci |
Powell River Crayfish |
|
| Stygobromus tenuis potomacus |
Potomac Amphipod |
|
| Stygobromus nanus |
Pocahontas Cave Amphipod |
|
| Stygobromus pizzinii |
Pizzini's Amphipod |
|
| Stygobromus obrutus |
Pittsylvania Well Amphipod |
|
| Stygobromus tenuis tenuis |
Piedmont Groundwater Amphipod/Tenuis |
|
| Caecidotea phreatica |
Phreatic Isopod |
|
| Stygobromus phreaticus |
Northern Virginia Well Amphipod |
|
| Gammarus pseudolimnaeus |
Northern Spring Amphipod |
|
| Caecidotea nordeni |
Norden's Groundwater Isopod |
|
| Cambarus chasmodactylus |
New River Riffle Crayfish |
|
| Stygobromus interitus |
New Castle Murder Hole Amphipod |
|
| Caecidotea bowmani |
Natural Bridge Cave Isopod |
|
| Crangonyx aberrans |
Mystic Valley Amphipod |
|
| Stygobromus morrisoni |
Morrison's Cave Amphipod |
|
| Stygobromus fergusoni |
Montgomery County Cave Amphipod |
|
| Stygobromus parvus |
Minute Cave Amphipod |
|
| Cambarus pauleyi |
Meadow River Mudbug |
High |
| Caecidotea mausi |
Maus' Cave Isopod |
|
| Antrolana lira |
Madison Cave Isopod |
|
| Stygobromus stegerorum |
Madison Cave Amphipod |
|
| Stygobromus pseudospinosus |
Luray Caverns Amphipod |
|
| Ligidium elrodii leensis |
Lee County Terrestrial Cave Isopod |
|