Crustacean Species in Greatest Need of Conservation

Caecidotea sp. Diacyclops sp. Amerigoniscus paynei Surgeon Crayfish Dactylocythere steevesi Southern Cave Crayfish Orconectes taylori Caecidotea richardsonae cave isopods Mammoth Cave Crayfish Yeatman's Groundwater Copepod Incurved Cave Isopod Stygobromus sp. Cambarus bouchardi Cambarus brachydactylus Orconectes pagei Medcof’s terrestrial isopod Southwestern Virginia Cave Isopod G4G5T1T2 Alabama Crayfish Cambarus manningi Finley's Cave Amphipod Hairyfoot Crayfish Chickamauga Crayfish Triconiscus pusillus Cambarus williami Cambarus stockeri Cambarus tenebrosus G1G2 Caecidotea circulus Cambarus obeyensis Obey Crayfish Stygobromus barryi Flint River Crayfish Big Sandy Crayfish S1 S2 S3 Cambarus crinipes Norton's Cave Amphipod S4 Southwestern Virginia Cave Amphipod Swamp River Cave Amphipod Caecidotea nickajackensis D E Caecidotea bicrenata bicrenata GNR Stygobromus sp. 3 Stygobromus sp. 4 S? terrestrial isopod Prickly Cave Crayfish Caecidotea bicrenata whitei Lesser spring amphipod Pseudocandona sp. T Cambarus pristinus cave copepods SH Stygobromus mackini Cocoa Crayfish Orconectes australis Cumberland Gap Cave Amphipod (a cave obligate amphipod) Orconectes burri groundwater ostracods SR Southern cave amphipod Cambarus clivosus Conasauga Blue Burrower copepods G3G4T3T4 Diacyclops yeatmani Orconectes forceps Caecidotea bicrenata Nashville Crayfish Valley Flame Crayfish Miktoniscus medcofi Stygobromus dicksoni Ligidium elrodii hancockensis Orconectes alabamensis LE Orconectes cooperi Central Kentucky Cave Obligate Nickajack Cave Isopod Blood River Crayfish Jeannel's Cave Ostracod Orconectes wrighti (a copepod) Cambarus sp? Diacyclops nearticus Orconectes barrenensis Amerigoniscus nicholasi Bosnak’s cave amphipod Caecidotea scyphus Cambarus cymatilis Stygobromus nortoni Orconectes barri Orconectes pellucidus S2S3 Bactrurus angulus Shortfingered Crayfish Donnaldson’s cave copepod Crangonyx sp. Gammarus minus Stygobromus exilis Caecidotea incurva Tennessee Valley Cave Isopod Mountain Crayfish Bottle Brush Crayfish Barbicambarus cornutus Megacyclops donnaldsoni Stygobromus vitreus Stygobromus sp. 24 Donnaldsoncythere tuberosa Stygobromus sp. 22 Sagittocythere barri Big South Fork Crayfish Emory River Crayfish Cambarus hamulatus Cambarus extraneus EX Cambarus angularis Hardin Crayfish Ectocommensal Ostracod Miktoniscus barri Orconectes shoupi Crescent Crayfish G3G4 Bryocamptus (Limocamptus) sp. Haplophthalmus danicus (a terrestrial cave isopod) Stygobromus fecundus Stygobromus finleyi Short Mountain Crayfish Fallicambarus hortoni G3G5 Caecidotea stygia Orconectes incomptus Caecidotea nortoni S1? Pristine Crayfish G1Q Stygobromus sparsus G1 Stygobromus sp. 34 G2 G3 G4 Hatchie Burrowing Crayfish Cumberland Plateau Cave Crayfish G5 Obed Crayfish Bactrurus undescribed sp. Hiwassee Crayfish Itocyclops undescribed sp. Tennessee Cave Crayfish Crustacean G? Brawleys Fork Crayfish S1S2 GH S2? (a cave obligate shrimp) Indiana Groundwater Copepod Cambarus sp. 1 Cambarus deweesae Pseudocandona jeanneli Cambarus hiwasseensis amphipods groundwater amphipod cave amphipods (a cave obligate isopod) Crangonyx antennatus G2G3 Angled Crayfish Nearctic copepod Caecidotea recurvata G2G4 Cambarus conasaugaensis (a crayfish) Acanthocyclops parasensitivus Appalachian cave amphipod Cavespring Crayfish S3?