Amphibians map turtle Arizona treefrog, Huachuca Canelo population Austin blind Barbour's map turtle Bay Springs salamander Berry cave salamander Black warrior waterdog Black-knobbed map turtle Chamberlain's dwarf salamander Columbia spotted frog, Great Basin population Coquí llanero Cumberland dusky salamander Eastern hellbender Escambia map turtle Florida bog frog Florida red-bellied turtle - Florida Panhandle Georgetown salamander blind salamander Gulf hammock dwarf siren Jemez Mountain salamander Jollyville Plateau salamander Neuse River waterdog Northern leopard frog Northern red-bellied cooter Oklahoma salamander One-toed amphiuma Oregon spotted frog Ozark hellbender Pascagoula map turtle Patch-nosed Salamander Relict leopard frog Salado salamander Seepage salamander Sierra Nevada yellow-legged frog Streamside salamander Striped mud turtle - lower Florida Keys Striped newt Tehachapi slender salamander cave salamander West Virginia Spring salamander Western chicken turtle Yosemite toad

Birds Ashy storm petrel Band-rumped storm petrel, Hawaii population Bicknell's thrush Black-footed albatross Cactus ferruginous pygmy owl Columbia Basin sage grouse Eastern black rail Elfin woods warbler Florida sandhill crane Friendly ground dove, American Samoa population Greater sage grouse Gunnison sage grouse Kittlitz's murrelet Lesser prarie-chicken MacGillivray's seaside sparrow Mono Basin sage grouse Red knot Scarlet Hawaiian honeycreeper ('I'iwi) Spotless crake Sprague's pipit Streaked horned lark Western gull-billed tern Western yellow-billed cuckoo White-tailed ptarmigan Xantus’s murrelet Yellow-billed loon

Fish Altamaha shiner Arkansas darter Ashy darter Bankhead darter Barrens darter Barrens topminnow Blackfin sucker Bluehead shiner Bluestripe shiner Bridled darter Broadstripe shiner Caddo California golden trout Candy darter Carolina madtom Carolina pygmy sunfish Chesapeake logperch Chucky madtom Coal darter Crystal darter Cumberland darter Diamond darter Egg-mimic darter Frecklebelly madtom Grotto sculpin Halloween darter Headwater chub Holiday darter Kentucky arrow darter Lake Sammamish kokanee salmon Laurel dace Least chub Longhead darter Longnose darter Montana grayling Northern cavefish Orangefin madtom Ouachita madtom Ozark chub Ozark shiner Paleback darter Pearl darter Peppered Shiner Piebald madtom Popeye shiner Rio Grande cutthroat trout Robust redhorse Rocky shiner Roundtail chub in the lower Colorado River Rush darter Saddled madtom Sharpnose shiner Shawnee darter Sickle darter Sicklefin redhorse Smalleye shiner Smallscale darter Spotted darter Spring pygmy sunfish Striated darter Tippecanoe darter Trispot darter Tuscumbia darter Warrior darter Yellowcheek darter Zuni bluehead sucker

Invertebrates A (Agarodes logani) A cave obligate isopod (Caecidotea cannula) Acute elimia Alabama cave crayfish Alabama hickorynut Alabama pearlshell Alabama rainbow Alabama spike Alachua light fleeing cave crayfish Altamaha arcmussel Altamaha spinymussel Amargosa tryonia Ample elimia Anchialine pool shrimp (Metabetaeus lohena) Anchialine pool shrimp (Palaemonella burnsi) Anchialine pool shrimp (Procaris hawaiana) Anchialine pool shrimp (Vetericaris chaceorum) Angular dwarf crayfish Apalachicola floater Appalachian cave crayfish Appalachian snaketail Arkansas mudalia Ash Meadows pebblesnail Atlantic pigtoe Avernus cave Bartram's hairstreak butterfly Basalt juga Bayou Bodcau crayfish Bearded red crayfish Beautiful crayfish Beaverpond marstonia Bifid duct pyrg Big Bar hesperian Big Blue Springs cave crayfish Big Sandy crayfish Big South Fork crayfish Big Warm Spring pyrg Bigcheek cave crayfish Black Creek crayfish Black mudalia Blackbarred crayfish Blackline megalagrion damselfly Blood River crayfish Blue Point pyrg Blue Spring hydrobe snail Blueridge springfly Brawleys Fork crayfish Broad River burrowing crayfish Broad River spiney crayfish Brook floater Brother spike Burrington jumping-slug Burrowing bog crayfish Butterfield pyrg Calcasieu crayfish Calvert's emerald Camp Valley pyrg Canary duskysnail Canoe Creek pigtoe Caper elimia Casey’s June beetle Chattooga River crayfish Chauga crayfish Chelan mountainsnail Cherokee clubtail Chickamauga crayfish Choctaw bean Chowanoke crayfish Chupadera springsnail Cinnamon juga Clifton cave beetle Clifton Spring hydrobe snail Coastal flatwoods crayfish Coastal lowland cave crayfish Cobble elimia Cobblestone tiger beetle Cockle elimia Coldwater crayfish Coleman cave beetle Columbia duskysnail Columbia Oregonian Compact elimia Conasauga blue burrower Cooper's cave amphipod Coosa creekshell Coosawattae crayfish Coral Pink Sand Dunes tiger beetle Corn Creek pyrg Corpulent hornsnail Crater Lake tightcoil Crested riverlet crayfish Crimson Hawaiian damselfly Crossroads cave beetle Crystal springsnail Cumberland Gap cave beetle Cumberland moccasinshell Cylinder elimia Cypress crayfish Dakota skipper Dalles sideband Delicate spike Dense hydrobe snail Diamond Y spring snail Diminuitive pebblesnail Diminutive amphipod Disjunct pebblesnail Distal gland springsnail Domed ancylid Dougherty plain cave crayfish Dry Fork Valley cave beetle Duckwater pyrg Duckwater Warm Springs pyrg Dukes' skipper Edmund's snaketail Elegant elimia Elk River crayfish Elongate gland springsnail Elongate mud meadows pyrg Emigrant pyrg Engraved elimia Enterprise siltsnail Etowah crayfish Evening fieldslug Fairbanks springsnail Flag pyrg Flat-top pebblesnail Flat-topped steptoe pyrg Florida brown checkered summer sedge Florida cave amphipod Florida cave crayfish Florida cave crayfish Florida fairy shrimp Florida leafwing butterfly Fluted kidneyshell Fowler's cave beetle Fragile tree snail Freemouth hydrobe snail Fuzzy pigtoe Gila springsnail Globular pebblesnail Gonzales springsnail Grandfather Mountain crayfish Grated tryonia Green floater Greenbrier cave crayfish Greensboro burrowing crayfish Guam tree snail Hamlin Valley pyrg Hardin crayfish Hardy pyrg Hatchie burrowing crayfish Helmet rocksnail Highlands tiger beetle Hiwassee headwater crayfish Hobb's cave amphipod Hoko vertigo Huachuca springsnail Hubbard's cave beetle Hubbs pyrg Hubricht's cave beetle Humped tree snail Icebox Cave beetle Ichetucknee siltsnail Inflated floater Inflated spike Inquirer cave beetle Insular cave beetle Irons fork burrowing crayfish Jackson Prairie drayfish Jefferson County crayfish Karst snowfly Kenk's amphipod Kentucky creekshell Kisatchie painted crayfish Knobby rams-horn Knobby rocksnail Lagniappe crayfish Lake Valley pyrg Lanai tree snail (Partulina semicarinata) Lanai tree snail (Partulina variabilis) Landyes pyrg Langford's tree snail Lean crayfish Least crayfish Lilyshoals elimia Linda's roadside-skipper Little Kennedy cave beetle Little Oecetis longhorn caddisfly Little Tennessee crayfish Lobed roachfly Lockes pyrg Longitudinal gland pyrg Longsolid Lost Creek pebblesnail Louisiana eyed silkmoth Louisiana needlefly Louisville cave beetle Maddens cave Beetle Magnificent rams-horn Maiden Spring cave beetle Mammoth Spring crayfish Manitou cavesnail Mardon skipper butterfly Mariana eight-spot butterfly Mariana wandering butterfly Masked duskysnail Median gland Nevada pyrg Miami blue butterfly Miami cave crayfish Mimic crayfish Minute cave amphipod Minute tryonia Mississippi flatwoods crayfish Moapa pebblesnail Moapa Valley pyrg Morrison's cave amphipod Morse's little plain brown sedge Mountain River cruiser Mt. Charleston blue butterfly Mud dlimia Narrow pigtoe Natural Bridge cave beetle Neosho mucket Nerite pebblesnail Neritiform Steptoe Ranch pyrg Nevares Spring naucorid bug New Mexico springsnail New River crayfish New River Valley cave beetle Newberry burrowing crayfish Newcomb's tree snail Nobletts cave beetle Nodulose Coosa River snail Northern steptoe pyrg Nugget pebblesnail Obey crayfish Oceanic Hawaiian damselfly Ocmulgee marstonia Oktibbeha riverlet crayfish Orange Lake cave crayfish Orangeblack Hawaiian megalagrion damselfly Orcutt's hazardia Orlando cave crayfish Ouachita burrowing crayfish Ouachita creekshell Overlooked cave beetle Ozark emerald Ozark pyrg Page springsnail Pahranagat pebblesnail Palatka skipper Pallid cave crayfish Panama City crayfish Phantom Lake cave snail Phantom springsnail Piedmont blue burrower Point of Rocks tryonia Pomace Ponderous siltsnail Potem pebblesnail Princess elimia Pristine crayfish Prune elimia Puerto Rico harlequin butterfly Puget Oregonian Purple lilliput Purple skimmer Putnum County Cave crayfish Pygmy siltsnail Pyramid pigtoe Rabbitsfoot Rare skipper Rayed bean Rayed creekshell Regal burrowing crayfish Reverse pebblesnail Rogue Creek hydroptila caddisfly Rosemont talussnail Round ebonyshell Round hickorynut Round-rib elimia Rye Cove isopod Saint Paul cave beetle Salamander mussel Saline burrowing crayfish San Bernadino springsnail Santa Fe cave crayfish Sarah's hydroptila caddisfly Savannah lilliput Say's spiketail Septima's clubtail Sequatchie caddisfly Setose cream-and-brown-mottled microcaddisfly Sevier snowfly Shasta chaparral Shasta hesperian Shasta sideband Shasta Springs pebblesnail Sheepnose mussel Shelta cave crayfish Shortspire hornsnail Shutispear crayfish Silken cave beetle Silver Glen Springs crayfish Sisi Siskiyou sideband Skirted hornsnail Slabside pearlymussel Slenderclaw crayfish Slenderwrist burrowing crayfish Smokies needlefly Smokies snowfly Smooth mudalia Snuffbox Sonoran talussnail Soothsayer cave beetle South Branch Valley cave beetle Southeast Nevada pyrg Southern Duckwater pyrg Southern elktoe Southern kidneyshell Southern lance Southern sandshell Southern snaketail Southern steptoe pyrg Speckled burrowing crayfish Spectaclecase pearly mussel Cave crayfish Spider elimia Spiny riversnail Spiny scale crayfish Spinytail crayfish Sportinggoods tryonia Spotted rocksnail Spring Mountains pyrg St. John's elephantear Stephan's riffle beetle Sterile Basin pyrg Sub-globose snake pyrg Sub-globose Steptoe Ranch pyrg Sucarnoochee River crayfish Suwannee moccasinshell Sykora's hydroptila caddisfly Tall pebblesnail Tallapoosa orb Tapered pigtoe Tatum cave beetle Taylor'scheckerspot butterfly Tehamana chaparral Tennessee cave crayfish Tennessee clubshell Tennessee clubtail Tennessee forestfly Tennessee heelsplitter Tennessee pigtoe Texas emerald Texas hornshell Thomas' cave beetle Three Forks springsnail Three-tooth triaenodes caddisfly Tidewater amphipod Tombigbee riverlet crayfish Tutuila tree snail Umbilicate pebblesnail Virginia stone Waccamaw fatmucket Walnut elimia Warrior pigtoe Warton cave meshweaver Wekiu bug Wekiwa hydrobe snail Wekiwa siltsnail Western fanshell Westfall's clubtail White River Valley pyrg Wintu sideband Woodville Karst cave crayfish Yalobusha riverlet crayfish Yazoo crayfish Yellow lance Yellow-sided clubtail

Mammals American wolverine Brush prairie pocket gopher Cathlamet pocket gopher Dusky tree vole Eastern small-footed bat Florida bonneted bat Gunnison's prairie dog Insular cotton rat Mariana sheath-tailed bat Mexican gray wolf Mohave ground squirrel New England cottontail rabbit New Mexico meadow jumping mouse Northern long-eared bat Northern Rocky Mountain fisher Olympia pocket gopher (Thomomys mazama pugetensis) Olympic pocket gopher (Thomomys mazama melanops) Pacific fisher Pacific walrus Pine Island oryzomys Roy Prairie pocket gopher San Bernardino flying squirrel Sanibel Island oryzomys Sheath-tailed bat, American Samoa population Shelton pocket gopher Sherman's short-tailed shrew Southern Idaho ground squirrel Tacoma pocket gopher Tenino pocket gopher Washington ground squirrel Yelm pocket gopher

Plants A hornwort (Megaceros aenigmaticus) Aboriginal prickly-apple Acuna cactus A'e Agave eggersiana Aiea Ala'ala'wai'nui' Alani (Melicope christophersenii) Alani (Melicope hiiakae) Alani (Melicope makahae) 'Anunu Apalachicola wild indigo Appalachian fissidens moss Awikiwiki Bartram stonecrop Bear tupelo Beardless chinch weed Big Cypress epidendrum Big Pine partridge pea Black-bract pipewort Blodgett's silverbush Bog asphodel Bog spicebush Boykin's lobelia Bracted phyllostegia Brand’s phacelia Bryson's sedge Cape Fear spatterdock Cape Sable orchid Cape Sable thoroughwort Carolina birds-in-a-nest Carolina bishopweed Carolina hemlock Carter's small-flowered flax Christella boydiae Christ's paintbrush Churchill Narrows buckwheat Ciliate-leaf tickseed Clam-shell prchid Correll's false dragon-head Curtis' loosestrife DeBeque phacelia Doll's-daisy Eared coneflower Edison's ascyrum Elliott's croton 'Ena'ena Eupatorium paludicola Everglades bully Fickeisen plains Florida brickell bush Florida bristle fern Florida pineland crabgrass Florida pondweed Florida prairie-clover Florida semaphore cactus Florida willow Georgia aster Georgia leadplant Georgia rockcress Gierisch mallow Glade-cress Godfrey's privet Godfrey's stitchwort Goose creek milk-vetch Gorge leafy liverwort Guadalupe fescue Gulf sweet pitcherplant Haha (Cyanea asplenifolia) Haha (Cyanea calycina) Haha (Cyanea kunthiana) Haha (Cyanea lanceolata) Haha (Cyanea obtusa) Haha (Cyanea tritomantha) Hairy-peduncled beakrush Ha'iwale (Cyrtandra filipes) Ha'iwale (Cyrtandra kaulantha) Ha'iwale (Cyrtandra oxybapha) Ha'iwale (Cyrtandra sessilis) Hala pepe (Pleomele fernaldii) Hala pepe (Pleomele forbesii) Hall's bulrush Hall's pocket moss Harper's fimbristylis Harper's heartleaf Hartwrightia Hawaiian fescue Henry's spider-lily Hirst's panic grass Holei Hulumoa Impressed-nerved sedge Island brittleleaf Kampuaa'a Kaulu Kentucky gladecress Kolea (Myrsine fosbergii) Kolea (Myrsine vaccinioides) Ko'oko'olau (Bidens amplectens) Ko'oko'olau (Bidens campylotheca ssp. paihoiensis) Ko'oko'olau (Bidens campylotheca ssp. pentamera) Ko'oko'olau (Bidens conjuncta) Ko'oko'olau (Bidens micrantha ssp. ctenophylla) Kopiko Kral's yellow-eyed-grass Large-flowered Barbara's-buttons Las Vegas buckwheat Lea's bog lichen Lemmon's fleabane Lobed barren-strawberry Long Beach seedbox Lowland loosestrife Makou (Ranunculus hawaiensis) Makou (Ranunculus mauiensis) Many-flowered phyllostegia Ma'oli'oli (Schiedea pubescens) Ma'oli'oli (Schiedea salicaria) Meadow joint-vetch Nanu Narrowleaf Carolina scalystem Narrowleaf naiad Neches River rose-mallow Nohoanu (Geranium hanaense) Nohoanu (Geranium hillebrandii) Northern wormwood Ocala vetch Ocmulgee skullcap Ohe Oklahoma grass pink Ozark chinquapin Packard's milkvetch Pagosa skyrocket Panhandle lily Panhandle meadow-beauty Parachute penstemon Pineland sandmat Platydesma cornuta var. cornuta Platydesma cornuta var. decurrens Popolo Puerto Rico manjack Purple balduina Ramshaw Meadow sand-verbena Raven's seedbox Red Mountain buckwheat Red Mountain stonecrop Reedgrass (Calamagrostis expansa) Reedgrass (Calamagrostis hillebrandii) Remy pilokea Rivergrass Rockcastle wood-aster Rough-stemmed aster San Fernando Valley spineflower Sand flax Sarracenia purpurea var. montana Seaside alder Sharp's leafy liverwort Shinner's sunflower Short's bladderpod Siskiyou mariposa lily Sleeping Ute milk-vetch Small-flower meadow-beauty Small-headed pipewort Smooth-barked St. John's-wort Soldier Meadows cinquefoil Southern meadowrue Southern racemose goldenrod Spathulate seedbox Stenogyne cranwelliae Sun-facing coneflower Swamp buckthorn Tahoe yellow cress Takeuch’s lip fern Tennessee pondweed Texas golden gladecress Texas screwstem Texas trillium Thin-wall quillwort Thorne's beakrush Umtanum desert-buckwheat Vandenberg monkeyflower Variable-leaved Indian-plantain Water stitchwort Wawae 'iole (Microlepia strigosa var. mauiensis) Wawae 'iole (Phlegmariurus stemmermanniae) Webber's ivesia Wedge spurge West Florida cow-lily West's flax Wherry's sweet pitcherplant White bluffs bladderpod White fringeless orchid White River beardtongue Whorled sunflower Winter quillwort Wire-leaved dropseed Yadkin River goldenrod Yellow anisetree

Reptiles Black pine snake Eastern massasauga Eastern ribbonsnake - lower Florida Keys Florida Keys mole skink Kirtland's snake Louisiana pine snake Mexican garter snake Mojave fringe-toed lizard Sand dune (sagebrush) lizard Sonoran desert tortoise Sonoyta mud turtle South Florida rainbow snake Tucson shovel-nosed snake