All Species (1315 total)
Exotic Only Native Only| Common Name | Scientific Name | Origin |
| African Jewel Cichlid | Hemichromis bimaculatus | Exotic |
| African Jewelfish | Hemichromis letourneuxi | Exotic |
| Ajijic Silverside | Chirostoma contrerasi | Native |
| Akupa Sleeper | Eleotris sandwicensis | Native |
| Alabama Bass | Micropterus henshalli | Native |
| Alabama Cavefish | Speoplatyrhinus poulsoni | Native |
| Alabama Darter | Etheostoma ramseyi | Native |
| Alabama Hog Sucker | Hypentelium etowanum | Native |
| Alabama Shad | Alosa alabamae | Native |
| Alabama Shiner | Cyprinella callistia | Native |
| Alabama Sturgeon | Scaphirhynchus suttkusi | Native |
| Alewife | Alosa pseudoharengus | Native |
| Alligator Gar | Atractosteus spatula | Native |
| Almoloya Cichlid | Paraneetroplus regani | Native |
| Altamaha Shiner | Cyprinella xaenura | Native |
| Alvord Chub | Gila alvordensis | Native |
| Amargosa Pupfish | Cyprinodon nevadensis | Native |
| Amatitlan Cichlid | Paraneetroplus guttulatus | Native |
| Amatlan Chub | Yuriria amatlana | Native |
| Amazon Molly | Poecilia formosa | Native |
| Amazon Sailfin Catfish | Pterygoplichthys pardalis | Exotic |
| Amber Darter | Percina antesella | Native |
| Ameca Chub | Algansea amecae | Native |
| Ameca Shiner | Notropis amecae | Native |
| American Brook Lamprey | Lethenteron appendix | Native |
| American Eel | Anguilla rostrata | Native |
| American Freshwater Goby | Ctenogobius shufeldti | Native |
| American Shad | Alosa sapidissima | Native |
| Amistad Gambusia | Gambusia amistadensis | Native |
| Amur Goby | Rhinogobius brunneus | Exotic |
| Angostura Cichlid | Paraneetroplus breidohri | Native |
| Apalachee Shiner | Pteronotropis grandipinnis | Native |
| Apalachicola Redhorse | Moxostoma sp. 1 | Native |
| Appalachia Darter | Percina gymnocephala | Native |
| Arctic Char | Salvelinus alpinus | Native |
| Arctic Grayling | Thymallus arcticus | Native |
| Arkansas Darter | Etheostoma cragini | Native |
| Arkansas River Shiner | Notropis girardi | Native |
| Arkansas River Speckled Chub | Macrhybopsis tetranema | Native |
| Arkansas Saddled Darter | Etheostoma euzonum | Native |
| Armed Snook | Centropomus armatus | Native |
| Arrow Darter | Etheostoma sagitta | Native |
| Arroyo Chub | Gila orcuttii | Native |
| Arroyo Cichlid | Theraps irregularis | Native |
| Ash Meadows Poolfish | Empetrichthys merriami | Native |
| Ashy Darter | Etheostoma cinereum | Native |
| Asian Needlefish | Xenentodon cancila | Exotic |
| Asian Swamp eel | Monopterus albus | Exotic |
| Atlantic Highfin Carpsucker | Carpiodes sp. cf. velifer | Native |
| Atlantic Needlefish | Strongylura marina | Native |
| Atlantic Salmon | Salmo salar | Native |
| Atlantic Stingray | Dasyatis sabina | Native |
| Atlantic Sturgeon | Acipenser oxyrinchus | Native |
| Atlantic Tomcod | Microgadus tomcod | Native |
| Aztec Chub | Notropis sallaei | Native |
| Backwater Darter | Etheostoma zonifer | Native |
| Bairdiella | Bairdiella icistia | Exotic |
| Balsas Allotoca | Neeophorus regalis | Native |
| Balsas Catfish | Ictalurus balsanus | Native |
| Balsas Livebearer | Poeciliopsis balsas | Native |
| Balsas Molly | Poecilia maylandi | Native |
| Balsas Silverside | Atherinella balsana | Native |
| Balsas Splitfin | Ilyodon whitei | Native |
| Banded Allotoca | Allotoca goslinei | Native |
| Banded Cichlid | Heros severus | Exotic |
| Banded Darter | Etheostoma zonale | Native |
| Banded Jewelfish | Hemichromis elongatus | Exotic |
| Banded Killifish | Fundulus diaphanus | Native |
| Banded Killifish - Lake Phelps Population | Fundulus cf. diaphanus | Native |
| Banded Leporinus | Leporinus fasciatus | Exotic |
| Banded Pygmy Sunfish | Elassoma zonatum | Native |
| Banded Sculpin | Cottus carolinae | Native |
| Banded Sunfish | Enneacanthus obesus | Native |
| Banded Tetra | Astyanax aeneus | Native |
| Banded Topminnow | Fundulus cingulatus | Native |
| Bandedtail Goatfish | Upeneus vittatus | Exotic |
| Bandfin Darter | Etheostoma zonistium | Native |
| Bandfin Shiner | Luxilus zonistius | Native |
| Bandfin Splitfin | Allodontichthys zonistius | Native |
| Bankhead Darter | Percina sipsi | Native |
| Bannerfin Shiner | Cyprinella leedsi | Native |
| Bantam Sunfish | Lepomis symmetricus | Native |
| Barcheek Darter | Etheostoma obeyense | Native |
| Barred Killifish | Heterandria jonesii | Native |
| Barred Splitfin | Chapalichthys encaustus | Native |
| Barrens Darter | Etheostoma forbesi | Native |
| Barrens Topminnow | Fundulus julisia | Native |
| Barton's Cichlid | Herichthys bartoni | Native |
| Bartram's Bass | Micropterus sp. | Native |
| Bay Anchovy | Anchoa mitchilli | Native |
| Bay Snook | Petenia splendida | Native |
| Bay Whiff | Citharichthys spilopterus | Native |
| Bayou Darter | Etheostoma rubrum | Native |
| Bayou Killifish | Fundulus pulvereus | Native |
| Bayou Topminnow | Fundulus nottii | Native |
| Bear Lake Sculpin | Cottus extensus | Native |
| Bear Lake Whitefish | Prosopium abyssicola | Native |
| Beautiful Shiner | Cyprinella formosa | Native |
| Bedrock Shiner | Notropis rupestris | Native |
| Bicolor Minnow | Tampichthys dichroma | Native |
| Big Bend Gambusia | Gambusia gaigei | Native |
| Bigeye Chub | Hybopsis amblops | Native |
| Bigeye Jumprock | Moxostoma ariommum | Native |
| Bigeye Shiner | Notropis boops | Native |
| Bigeye Silverside | Chirostoma grandocule | Native |
| Bigeye Trevally | Caranx sexfasciatus | Native |
| Bighead Carp | Hypophthalmichthys nobilis | Exotic |
| Bigmouth Buffalo | Ictiobus cyprinellus | Native |
| Bigmouth Chub | Nocomis platyrhynchus | Native |
| Bigmouth Sanddab | Citharichthys gilberti | Native |
| Bigmouth Shiner | Notropis dorsalis | Native |
| Bigmouth Silverside | Chirostoma sphyraena | Native |
| Bigmouth Sleeper | Gobiomorus dormitor | Native |
| Bigscale Logperch | Percina macrolepida | Native |
| Bitterling | Rhodeus sericeus | Exotic |
| Black Acara | Cichlasoma bimaculatum | Exotic |
| Black Buffalo | Ictiobus niger | Native |
| Black Bullhead | Ameiurus melas | Native |
| Black Crappie | Pomoxis nigromaculatus | Native |
| Black Madtom | Noturus funebris | Native |
| Black Molly | Poecilia latipinna x velifera | Exotic |
| Black Redhorse | Moxostoma duquesnii | Native |
| Black Sculpin | Cottus baileyi | Native |
| Black Snook | Centropomus nigrescens | Native |
| Black Splitfin | Xenotoca melanosoma | Native |
| Blackbanded Darter | Percina nigrofasciata | Native |
| Blackbanded Sunfish | Enneacanthus chaetodon | Native |
| Blackchin Shiner | Notropis heterodon | Native |
| Blackchin Tilapia | Sarotherodon melanotheron | Exotic |
| Blackfin Cisco | Coregonus nigripinnis | Native |
| Blackfin Darter | Etheostoma nigripinne | Native |
| Blackfin Gambusia | Gambusia atrora | Native |
| Blackfin Goodea | Goodea atripinnis | Native |
| Blackfin Silverside | Atherinella crystallina | Native |
| Blackfin Sucker | Thoburnia atripinnis | Native |
| Blackgullet Cichlid | Thorichthys pasionis | Native |
| Blackmouth Shiner | Notropis melanostomus | Native |
| Blacknose Shiner | Notropis heterolepis | Native |
| Blacknose Silverside | Chirostoma promelas | Native |
| Blackside Dace | Chrosomus cumberlandensis | Native |
| Blackside Darter | Percina maculata | Native |
| Blackside Snubnose Darter | Etheostoma duryi | Native |
| Blackspot Allotoca | Allotoca maculata | Native |
| Blackspot Barb | Puntius filamentosus | Exotic |
| Blackspot Shiner | Notropis atrocaudalis | Native |
| Blackspotted Livebearer | Poeciliopsis turneri | Native |
| Blackspotted Topminnow | Fundulus olivaceus | Native |
| Blackstripe Cichlid | Paraneetroplus fenestratus | Native |
| Blackstripe Livebearer | Poeciliopsis prolifica | Native |
| Blackstripe Topminnow | Fundulus notatus | Native |
| Blacktail Redhorse | Moxostoma poecilurum | Native |
| Blacktail Shiner | Cyprinella venusta | Native |
| Blacktail Snapper | Lutjanus fulvus | Exotic |
| Blacktip Jumprock | Moxostoma cervinum | Native |
| Blacktip Shiner | Lythrurus atrapiculus | Native |
| Bleeding Shiner | Luxilus zonatus | Native |
| Blenny Darter | Etheostoma blennius | Native |
| Bloater | Coregonus hoyi | Native |
| Bloodfin Darter | Etheostoma sanguifluum | Native |
| Blotchcheek Goby | Ctenogobius fasciatus | Native |
| Blotched Chub | Erimystax insignis | Native |
| Blotched Gambusia | Gambusia senilis | Native |
| Blotched Snakehead | Channa maculata | Exotic |
| Blotchside Logperch | Percina burtoni | Native |
| Blue Catfish | Ictalurus furcatus | Native |
| Blue Chub | Gila coerulea | Native |
| Blue Ridge Sculpin | Cottus caeruleomentum | Native |
| Blue Shiner | Cyprinella caerulea | Native |
| Blue Sucker | Cycleptus elongatus | Native |
| Blue Tilapia | Oreochromis aureus | Exotic |
| Blue X Mozambique Tilapia | Oreochromis aureus x mossambicus | Exotic |
| Blue-eyed Cichlid | Cichlasoma spilurum | Exotic |
| Blueback Herring | Alosa aestivalis | Native |
| Bluebarred Pygmy Sunfish | Elassoma okatie | Native |
| Bluebreast Darter | Etheostoma camurum | Native |
| Blueface Darter | Etheostoma sp. 14 | Native |
| Bluefin Killifish | Lucania goodei | Native |
| Bluefin Stoneroller | Campostoma pauciradii | Native |
| Bluegill | Lepomis macrochirus | Native |
| Bluegrass Darter | Etheostoma sp. 6 | Native |
| Bluegrass Darter | Etheostoma jimmycarter | Native |
| Bluegray Mbuna | Melanochromis johannii | Exotic |
| Bluehead Chub | Nocomis leptocephalus | Native |
| Bluehead Shiner | Pteronotropis hubbsi | Native |
| Bluehead Sucker | Catostomus discobolus | Native |
| Bluemask Darter | Etheostoma akatulo | Native |
| Bluemouth Cichlid | Amphilophus nourissati | Native |
| Bluenose Shiner | Pteronotropis welaka | Native |
| Blueside Darter | Etheostoma jessiae | Native |
| Blueside Shiner | Lythrurus ardens | Native |
| Bluespar Darter | Etheostoma meadiae | Native |
| Bluespotted Sunfish | Enneacanthus gloriosus | Native |
| Bluestone Sculpin | Cottus sp. 1 | Native |
| Bluestripe Darter | Percina cymatotaenia | Native |
| Bluestripe Shiner | Cyprinella callitaenia | Native |
| Bluestripe Snapper | Lutjanus kasmira | Exotic |
| Bluetail Goodea | Ataeniobius toweri | Native |
| Bluntface Shiner | Cyprinella camura | Native |
| Bluntnose Darter | Etheostoma chlorosoma | Native |
| Bluntnose Minnow | Pimephales notatus | Native |
| Bluntnose Shiner | Notropis simus | Native |
| Bold Characodon | Characodon audax | Native |
| Bolson Pupfish | Cyprinodon atrorus | Native |
| Bonneville Cisco | Prosopium gemmifer | Native |
| Bonneville Whitefish | Prosopium spilonotus | Native |
| Bonytail | Gila elegans | Native |
| Borax Lake Chub | Gila boraxobius | Native |
| Boulder Darter | Etheostoma wapiti | Native |
| Bowfin | Amia calva | Native |
| Brassy Jumprock | Moxostoma sp. 4 | Native |
| Brassy Minnow | Hybognathus hankinsoni | Native |
| Bridgelip Sucker | Catostomus columbianus | Native |
| Bridle Shiner | Notropis bifrenatus | Native |
| Bridled Darter | Percina kusha | Native |
| Brighteye Darter | Etheostoma lynceum | Native |
| Brindled Madtom | Noturus miurus | Native |
| Bristlenosed Catfish | Ancistrus cf. temminickii | Exotic |
| Bristlenosed Catfish | Ancistrus sp. | Exotic |
| Broadspotted Molly | Poecilia latipunctata | Native |
| Broadspotted Molly | Poecilia latipunctata | Native |
| Broadstripe Shiner | Pteronotropis euryzonus | Native |
| Broadstripe Topminnow | Fundulus euryzonus | Native |
| Broadtail Madtom | Noturus sp. 2 | Native |
| Bronze Darter | Percina palmaris | Native |
| Brook Darter | Etheostoma burri | Native |
| Brook Silverside | Labidesthes sicculus | Native |
| Brook Stickleback | Culaea inconstans | Native |
| Brook Trout | Salvelinus fontinalis | Native |
| Brown Bullhead | Ameiurus nebulosus | Native |
| Brown Darter | Etheostoma edwini | Native |
| Brown Hoplo | Hoplosternum littorale | Exotic |
| Brown Madtom | Noturus phaeus | Native |
| Brown Trout | Salmo trutta | Exotic |
| Buffalo Darter | Etheostoma bison | Native |
| Bull Chub | Nocomis raneyi | Native |
| Bull Trout | Salvelinus confluentus | Native |
| Bulldog Goodeid | Alloophorus robustus | Native |
| Bullhead Minnow | Pimephales vigilax | Native |
| Bullseye Snakehead | Channa marulius | Exotic |
| Burbot | Lota lota | Native |
| Burrhead Chub | Macrhybopsis marconis | Native |
| Burrhead Shiner | Notropis asperifrons | Native |
| Burro Grunt | Pomadasys crocro | Native |
| Butterfly Peacock Bass | Cichla ocellaris | Exotic |
| Butterfly Splitfin | Ameca splendens | Native |
| Caddo Madtom | Noturus taylori | Native |
| Cahaba Bass | Micropterus cahabae | Native |
| Cahaba Shiner | Notropis cahabae | Native |
| Calabazas Shiner | Notropis calabazas | Native |
| California Roach | Lavinia symmetricus | Native |
| Candy Darter | Etheostoma osburni | Native |
| Caney Fork Darter | Etheostoma sp. 10 | Native |
| Cape Fear Shiner | Notropis mekistocholas | Native |
| Cardinal Shiner | Luxilus cardinalis | Native |
| Carmine Shiner | Notropis percobromus | Native |
| Carolina Darter | Etheostoma collis | Native |
| Carolina Fantail Darter | Etheostoma brevispinum | Native |
| Carolina Madtom | Noturus furiosus | Native |
| Carolina Pygmy Sunfish | Elassoma boehlkei | Native |
| Carolina Redhorse | Moxostoma sp. 3 | Native |
| Catarina Allotoca | Allotoca catarinae | Native |
| Catemaco Characin | Astyanax caballeroi | Native |
| Catemaco Livebearer | Poeciliopsis catemaco | Native |
| Catemaco Platyfish | Xiphophorus milleri | Native |
| Central Mudminnow | Umbra limi | Native |
| Central Stoneroller | Campostoma anomalum | Native |
| Chain Pickerel | Esox niger | Native |
| Chainback Darter | Percina nevisense | Native |
| Chameleon Goby | Tridentiger trigonocephalus | Exotic |
| Chanchita | Cichlasoma dimerus | Exotic |
| Channel Catfish | Ictalurus punctatus | Native |
| Channel Darter | Percina copelandi | Native |
| Channel Shiner | Notropis wickliffi | Native |
| Chapala Chub | Yuriria chapalae | Native |
| Chapultepec Splitfin | Girardinichthys viviparus | Native |
| Charal | Chirostoma reseratum | Native |
| Chattahoochee Bass | Micropterus chattahoochae | Native |
| Chattahoochee Sculpin | Cottus chattahoochee | Native |
| Cheat Minnow | Pararhinichthys bowersi | Native |
| Checkered Madtom | Noturus flavater | Native |
| Checkered Pupfish | Cualac tessellatus | Native |
| Checkered Sculpin | Cottus sp. 7 | Native |
| Cherokee Darter | Etheostoma scotti | Native |
| Cherry Darter | Etheostoma etnieri | Native |
| Cherryfin Shiner | Lythrurus roseipinnis | Native |
| Chestnut Lamprey | Ichthyomyzon castaneus | Native |
| Chiapas Cichlid | Thorichthys socolofi | Native |
| Chickasaw Darter | Etheostoma cervus | Native |
| Chihuahua Catfish | Ictalurus sp. 1 | Native |
| Chihuahua Chub | Gila nigrescens | Native |
| Chihuahua Darter | Etheostoma pottsii | Native |
| Chihuahua Shiner | Notropis chihuahua | Native |
| Chimalapa Silverside | Atherinella schultzi | Native |
| Chinese Algae-eater | Gyrinocheilus aymonieri | Exotic |
| Chinook Salmon | Oncorhynchus tshawytscha | Native |
| Chiselmouth | Acrocheilus alutaceus | Native |
| Choctawhatchee Darter | Etheostoma davisoni | Native |
| Christmas Darter | Etheostoma hopkinsi | Native |
| Chub Shiner | Notropis potteri | Native |
| Chubby Livebearer | Poeciliopsis viriosa | Native |
| Chucky Madtom | Noturus crypticus | Native |
| Chum Salmon | Oncorhynchus keta | Native |
| Cichlid | Cichlasoma sp. | Exotic |
| Cisco | Coregonus artedi | Native |
| Citico Darter | Etheostoma sitikuense | Native |
| Clear Chub | Hybopsis winchelli | Native |
| Clear Creek Gambusia | Gambusia heterochir | Native |
| Clear Lake Splittail | Pogonichthys ciscoides | Native |
| Clearfin Livebearer | Poeciliopsis lucida | Native |
| Clinch Dace | Chrosomus sp. cf. saylori | Native |
| Clinch Sculpin | Cottus sp. 4 | Native |
| Clown Knife | Chitala ornata | Exotic |
| Coal Darter | Percina brevicauda | Native |
| Coastal Darter | Etheostoma colorosum | Native |
| Coastal Shiner | Notropis petersoni | Native |
| Coastrange Sculpin | Cottus aleuticus | Native |
| Coho Salmon | Oncorhynchus kisutch | Native |
| Coldwater Darter | Etheostoma ditrema | Native |
| Colorado Pikeminnow | Ptychocheilus lucius | Native |
| Comanche Springs Pupfish | Cyprinodon elegans | Native |
| Comely Shiner | Notropis amoenus | Native |
| Common Carp | Cyprinus carpio | Exotic |
| Common Shiner | Luxilus cornutus | Native |
| Common Snook | Centropomus undecimalis | Native |
| Conasauga Logperch | Percina jenkinsi | Native |
| Conchos Darter | Etheostoma australe | Native |
| Conchos Pupfish | Cyprinodon eximius | Native |
| Conchos Shiner | Cyprinella panarcys | Native |
| Congo Tetra | Phenacogrammus interruptus | Exotic |
| Convict Cichlid | Amatitlania nigrofasciata | Exotic |
| Coosa Chub | Macrhybopsis sp. 1 | Native |
| Coosa Darter | Etheostoma coosae | Native |
| Coosa Shiner | Notropis xaenocephalus | Native |
| Coppercheek Darter | Etheostoma aquali | Native |
| Corrugated Darter | Etheostoma basilare | Native |
| Creek Chub | Semotilus atromaculatus | Native |
| Creek Chubsucker | Erimyzon oblongus | Native |
| Creole Darter | Etheostoma collettei | Native |
| Crescent Shiner | Luxilus cerasinus | Native |
| Crevalle Jack | Caranx hippos | Native |
| Croaking Gourami | Trichopsis vittata | Exotic |
| Crown Darter | Etheostoma corona | Native |
| Crystal Darter | Crystallaria asprella | Native |
| Cuatro Cienegas Pupfish | Cyprinodon bifasciatus | Native |
| Cuatro Cienegas Shiner | Cyprinella xanthicara | Native |
| Cuban Limia | Limia vittata | Exotic |
| Cui-ui | Chasmistes cujus | Native |
| Cumberland Darter | Etheostoma susanae | Native |
| Cumberland Plateau Darter | Etheostoma spilotum | Native |
| Cumberland Snubnose Darter | Etheostoma atripinne | Native |
| Cunner Wrass | Tautogolabrus adspersus | Native |
| Current Darter | Etheostoma uniporum | Native |
| Curve-bar Cichlid | Herichthys labridens | Native |
| Cutlip Minnow | Exoglossum maxillingua | Native |
| Cutthroat Trout | Oncorhynchus clarkii | Native |
| Cypress Darter | Etheostoma proeliare | Native |
| Cypress Minnow | Hybognathus hayi | Native |
| Darkedged Splitfin | Girardinichthys multiradiatus | Native |
| Darter | Etheostoma sp. 11 | Native |
| Darter Goby | Ctenogobius boleosoma | Native |
| Deepbody Thread Herring | Opisthonema libertate | Exotic |
| Deepwater Cisco | Coregonus johannae | Native |
| Deepwater Sculpin | Myoxocephalus thompsonii | Native |
| Delicate Swordtail | Xiphophorus cortezi | Native |
| Delta Smelt | Hypomesus transpacificus | Native |
| Desert Dace | Eremichthys acros | Native |
| Desert Pupfish | Cyprinodon macularius | Native |
| Desert Sucker | Catostomus clarkii | Native |
| Devil's Hole Pupfish | Cyprinodon diabolis | Native |
| Devils River Minnow | Dionda diaboli | Native |
| Diamond Darter | Crystallaria cincotta | Native |
| Diamond Killifish | Adinia xenica | Native |
| Dixie Chub | Semotilus thoreauianus | Native |
| Dogtooth Rivulus | Rivulus tenuis | Native |
| Dollar Sunfish | Lepomis marginatus | Native |
| Dolly Varden | Salvelinus malma | Native |
| Duck Darter | Etheostoma planasaxatile | Native |
| Dusk Fin Goodeid | Goodea atripinnis gracilis | Native |
| Dusky Darter | Percina sciera | Native |
| Dusky Shiner | Notropis cummingsae | Native |
| Duskystripe Shiner | Luxilus pilsbryi | Native |
| Duskytail Darter | Etheostoma percnurum | Native |
| Dwarf Molly | Poecilia chica | Native |
| Eartheater | Geophagus sp. | Exotic |
| Eastern Blacknose Dace | Rhinichthys atratulus | Native |
| Eastern Happy | Haplochromis callipterus | Exotic |
| Eastern Mosquitofish | Gambusia holbrooki | Native |
| Eastern Mudminnow | Umbra pygmaea | Native |
| Eastern Ozark Madtom | Noturus maydeni | Native |
| Eastern Sand Darter | Ammocrypta pellucida | Native |
| Eastern Silvery Minnow | Hybognathus regius | Native |
| Eastrim Darter | Etheostoma orientale | Native |
| Egg-mimic Darter | Etheostoma pseudovulatum | Native |
| Elegant Madtom | Noturus elegans | Native |
| Emerald Darter | Etheostoma baileyi | Native |
| Emerald Shiner | Notropis atherinoides | Native |
| Estuarine Sea Catfish | Cathorops aguadulce | Native |
| Estuary Goby | Gobionellus microdon | Native |
| Etowah Chub | Hybopsis sp. 9 | Native |
| Etowah Darter | Etheostoma etowahae | Native |
| Eulachon | Thaleichthys pacificus | Native |
| Everglades Pygmy Sunfish | Elassoma evergladei | Native |
| Eyipantla Silverside | Atherinella marvelae | Native |
| Fairy Basslet | Gramma loreto | Exotic |
| Fallfish | Semotilus corporalis | Native |
| False Firemouth Cichlid | Amphilophus robertsoni | Native |
| Fang-toothed Blenny | Omobranchus ferox | Exotic |
| Fantail Darter | Etheostoma flabellare | Native |
| Fat Sleeper | Dormitator maculatus | Native |
| Fat Snook | Centropomus parallelus | Native |
| Fathead Minnow | Pimephales promelas | Native |
| Fatlips Minnow | Phenacobius crassilabrum | Native |
| Fieryblack Shiner | Cyprinella pyrrhomelas | Native |
| Filespine Chulín | Rhamdia laticauda | Native |
| Finescale Dace | Chrosomus neogaeus | Native |
| Finescale Sleeper | Gobiomorus polylepis | Native |
| Finescale Splitfin | Allodontichthys polylepis | Native |
| Firebelly Darter | Etheostoma pyrrhogaster | Native |
| Firemouth Cichlid | Thorichthys meeki | Exotic |
| Flagfin Shiner | Pteronotropis signipinnis | Native |
| Flagfish | Jordanella floridae | Native |
| Flame Chub | Hemitremia flammea | Native |
| Flannelmouth Sucker | Catostomus latipinnis | Native |
| Flat Bullhead | Ameiurus platycephalus | Native |
| Flathead Catfish | Pylodictis olivaris | Native |
| Flathead Chub | Platygobio gracilis | Native |
| Fleshylip Buffalo | Ictiobus labiosus | Native |
| Flier | Centrarchus macropterus | Native |
| Florida Chub | Macrhybopsis sp. 2 | Native |
| Florida Gar | Lepisosteus platyrhincus | Native |
| Florida Sand Darter | Ammocrypta bifascia | Native |
| Fluvial Shiner | Notropis edwardraneyi | Native |
| Fountain Darter | Etheostoma fonticola | Native |
| Fourhorn Sculpin | Myoxocephalus quadricornis | Native |
| Fourspine Stickleback | Apeltes quadracus | Native |
| Frecklebelly Darter | Percina stictogaster | Native |
| Frecklebelly Madtom | Noturus munitus | Native |
| Freckled Cichlid | Theraps lentiginosus | Native |
| Freckled Cichlid | Theraps rheophilus | Native |
| Freckled Darter | Percina lenticula | Native |
| Freckled Madtom | Noturus nocturnus | Native |
| Freshwater Drum | Aplodinotus grunniens | Native |
| Frillfin Goby | Bathygobius soporator | Native |
| Fringed Darter | Etheostoma crossopterum | Native |
| Ghost Shiner | Notropis buchanani | Native |
| Giant Killifish | Fundulus grandissimus | Native |
| Giant Rivulus | Rivulus hartii | Exotic |
| Giant Sand Stargazer | Dactylagnus mundus | Native |
| Gibbous Shiner | Cyprinella garmani | Native |
| Gila Chub | Gila intermedia | Native |
| Gila or Apache Trout | Oncorhynchus gilae | Native |
| Gila Topminnow | Poeciliopsis occidentalis | Native |
| Gilt Darter | Percina evides | Native |
| Gizzard Shad | Dorosoma cepedianum | Native |
| Glassy Darter | Etheostoma vitreum | Native |
| Goldbreast Splitfin | Ilyodon furcidens | Native |
| Golden Darter | Etheostoma denoncourti | Native |
| Golden Livebearer | Poeciliopsis baenschi | Native |
| Golden Redhorse | Moxostoma erythrurum | Native |
| Golden Shiner | Notemigonus crysoleucas | Native |
| Golden Silverside | Menidia colei | Native |
| Golden Topminnow | Fundulus chrysotus | Native |
| Goldeye | Hiodon alosoides | Native |
| Goldfish | Carassius auratus | Exotic |
| Goldfish X Common Carp | Carassius auratus x Cyprinus carpio | Exotic |
| Goldfish X Crucian Carp | Carassius auratus x C. carassius | Exotic |
| Goldline Darter | Percina aurolineata | Native |
| Goldspot Herring | Herklotsichthys quadrimaculatus | Exotic |
| Goldstripe Darter | Etheostoma parvipinne | Native |
| Graceful Piquitinga | Lile gracilis | Native |
| Grass Carp | Ctenopharyngodon idella | Exotic |
| Gravel Chub | Erimystax x-punctatus | Native |
| Gray Redhorse | Moxostoma congestum | Native |
| Greater Jumprock | Moxostoma lachneri | Native |
| Greater Redhorse | Moxostoma valenciennesi | Native |
| Green Barb | Puntius semifasciolatus | Exotic |
| Green Corydoras | Corydoras aeneus | Exotic |
| Green Guapote | Cichlasoma beani | Native |
| Green Jack | Caranx caballus | Native |
| Green Sturgeon | Acipenser medirostris | Native |
| Green Sunfish | Lepomis cyanellus | Native |
| Green Swordtail | Xiphophorus hellerii | Exotic |
| Greenbreast Darter | Etheostoma jordani | Native |
| Greenfin Darter | Etheostoma chlorobranchium | Native |
| Greenfin Shiner | Cyprinella chloristia | Native |
| Greenhead Shiner | Notropis chlorocephalus | Native |
| Greenside Darter | Etheostoma blennioides | Native |
| Greenthroat Darter | Etheostoma lepidum | Native |
| Grotto Sculpin | Cottus sp. 8 | Native |
| Ground Croaker | Bairdiella ronchus | Native |
| Grubby Sculpin | Myoxocephalus aenaeus | Native |
| Guadalupe Bass | Micropterus treculii | Native |
| Guadalupe Roundnose Minnow | Dionda nigrotaeniata | Native |
| Guardian Darter | Etheostoma oophylax | Native |
| Guaru | Poecilia vivipara | Exotic |
| Guatemala Silverside | Atherinella guatemalensis | Native |
| Guineafowl Puffer | Arothron meleagris | Native |
| Gulf Coast Pygmy Sunfish | Elassoma gilberti | Native |
| Gulf Darter | Etheostoma swaini | Native |
| Gulf Gambusia | Gambusia vittata | Native |
| Gulf Killifish | Fundulus grandis | Native |
| Gulf Logperch | Percina suttkusi | Native |
| Gulf Pipefish | Syngnathus scovelli | Native |
| Gulf Silverside | Atherinella alvarezi | Native |
| Guppy | Poecilia reticulata | Exotic |
| Halloween Darter | Percina crypta | Native |
| Hardhead | Mylopharodon conocephalus | Native |
| Hardhead Catfish | Ariopsis felis | Native |
| Harelip Sucker | Moxostoma lacerum | Native |
| Harlequin Darter | Etheostoma histrio | Native |
| Headwater Catfish | Ictalurus lupus | Native |
| Headwater Chub | Gila nigra | Native |
| Headwater Darter | Etheostoma lawrencei | Native |
| Hickory Shad | Alosa mediocris | Native |
| Highback Chub | Hybopsis hypsinotus | Native |
| Highfin Carpsucker | Carpiodes velifer | Native |
| Highfin Shiner | Notropis altipinnis | Native |
| Highland Rim Darter | Etheostoma kantuckeense | Native |
| Highland Shiner | Notropis micropteryx | Native |
| Highscale Shiner | Notropis hypsilepis | Native |
| Hitch | Lavinia exilicauda | Native |
| Hogchoker | Trinectes maculatus | Native |
| Holiday Darter | Etheostoma brevirostrum | Native |
| Holston Sculpin | Cottus sp. 5 | Native |
| Hornyhead Chub | Nocomis biguttatus | Native |
| Humpback Chub | Gila cypha | Native |
| Humpback Snapper | Lutjanus gibbus | Exotic |
| Hybrid Silver/Bighead Carp | Hypophthalmichthys molitrix x nobilis | Exotic |
| Hybrid Tilapia | Tilapia sp. x sp. | Exotic |
| Hybrid Tilapia | Oreochromis mossambicus x hornorum | Exotic |
| Ide | Leuciscus idus | Exotic |
| Inconnu | Stenodus leucichthys | Native |
| Inland Silverside | Menidia beryllina | Native |
| Iowa Darter | Etheostoma exile | Native |
| Ironcolor Shiner | Notropis chalybaeus | Native |
| Isthmian Priapella | Priapella intermedia | Native |
| Ives Lake Cisco | Coregonus hubbsi | Native |
| Jack Dempsey | Rocio octofasciata | Exotic |
| Jaguar Guapote | Parachromis managuensis | Exotic |
| Jalisco Chub | Yuriria alta | Native |
| Jenny Mojarra | Eucinostomus gula | Native |
| Jeweled Splitfin | Xenotoca variata | Native |
| Johnny Darter | Etheostoma nigrum | Native |
| June Sucker | Chasmistes liorus | Native |
| Kanawha Darter | Etheostoma kanawhae | Native |
| Kanawha Minnow | Phenacobius teretulus | Native |
| Kanda | Valamugil engeli | Exotic |
| Kentucky Darter | Etheostoma rafinesquei | Native |
| Kern Brook Lamprey | Lampetra hubbsi | Native |
| Kiamichi Shiner | Notropis ortenburgeri | Native |
| Kiyi | Coregonus kiyi | Native |
| Klamath Lake Sculpin | Cottus princeps | Native |
| Klamath Lamprey | Lampetra similis | Native |
| Klamath Largescale Sucker | Catostomus snyderi | Native |
| Klamath Smallscale Sucker | Catostomus rimiculus | Native |
| Knobfin Sculpin | Cottus immaculatus | Native |
| La Luz Splitfin | Zoogoneticus purepechus | Native |
| La Palma Silverside | Atherinella ammophila | Native |
| Lacandon Sea Catfish | Potamarius nelsoni | Native |
| Lahontan Redside | Richardsonius egregius | Native |
| Lake Chub | Couesius plumbeus | Native |
| Lake Chubsucker | Erimyzon sucetta | Native |
| Lake Sturgeon | Acipenser fulvescens | Native |
| Lake Trout | Salvelinus namaycush | Native |
| Lake Whitefish | Coregonus clupeaformis | Native |
| Lantern Minnow | Tampichthys ipni | Native |
| Large-eye Silverside | Atherinella sallei | Native |
| Largelip Killifish | Profundulus labialis | Native |
| Largemouth Bass | Micropterus salmoides | Native |
| Largescale Stoneroller | Campostoma oligolepis | Native |
| Largescale Sucker | Catostomus macrocheilus | Native |
| Largescaled Spinycheek Sleeper | Eleotris amblyopsis | Native |
| Largespot Livebearer | Poeciliopsis pleurospilus | Native |
| Largespring Gambusia | Gambusia geiseri | Native |
| Largetooth Silverside | Chirostoma arge | Native |
| Las Vegas Dace | Rhinichthys deaconi | Native |
| Laurel Dace | Chrosomus saylori | Native |
| Least Brook Lamprey | Lampetra aepyptera | Native |
| Least Chub | Iotichthys phlegethontis | Native |
| Least Darter | Etheostoma microperca | Native |
| Least Killifish | Heterandria formosa | Native |
| Least Madtom | Noturus hildebrandi | Native |
| Lemonpeel Angel | Centropyge flavissima | Exotic |
| Leon Springs Pupfish | Cyprinodon bovinus | Native |
| Leopard Dace | Rhinichthys falcatus | Native |
| Leopard Darter | Percina pantherina | Native |
| Leopard Splitfin | Xenotaenia resolanae | Native |
| Lerma Catfish | Ictalurus dugesi | Native |
| Lerma Livebearer | Poeciliopsis infans | Native |
| Lined Chub | Hybopsis lineapunctata | Native |
| Lined Topminnow | Fundulus lineolatus | Native |
| Lionfish | Pterois volitans/miles | Exotic |
| Lipstick Darter | Etheostoma chuckwachatte | Native |
| Little Colorado Spinedace | Lepidomeda vittata | Native |
| Little Colorado Sucker | Catostomus sp. 3 | Native |
| Livebearing Fish | Heterandria tuxtlaensis | Native |
| Loach Minnow | Rhinichthys cobitis | Native |
| Locust Fork Darter | Etheostoma sp. 12 | Native |
| Logperch | Percina caprodes | Native |
| Lollypop Darter | Etheostoma neopterum | Native |
| Longear Sunfish | Lepomis megalotis | Native |
| Longfin Dace | Agosia chrysogaster | Native |
| Longfin Darter | Etheostoma longimanum | Native |
| Longfin Smelt | Spirinchus thaleichthys | Native |
| Longfin Tilapia | Oreochromis macrochir | Exotic |
| Longhead Darter | Percina macrocephala | Native |
| Longhorn Sculpin | Myoxocephalus octodecemspinosus | Native |
| Longhunt Darter | Etheostoma sp. 5 | Native |
| Longjaw Minnow | Notropis amplamala | Native |
| Longjaw Silverside | Chirostoma lucius | Native |
| Longlip Jumprock | Moxostoma albidum | Native |
| Longnose Dace | Rhinichthys cataractae | Native |
| Longnose Darter | Percina nasuta | Native |
| Longnose Gar | Lepisosteus osseus | Native |
| Longnose Shiner | Notropis longirostris | Native |
| Longnose Sucker | Catostomus catostomus | Native |
| Lost River Sucker | Deltistes luxatus | Native |
| Lower Coosa Darter | Etheostoma sp. 3 | Native |
| Lowland Cichlid | Herichthys carpintis | Native |
| Lowland Livebearer | Poeciliopsis latidens | Native |
| Lowland Shiner | Pteronotropis stonei | Native |
| Lowland Topminnow | Fundulus blairae | Native |
| Lump Sucker | Cyclopterus lumpus | Native |
| Machaca | Brycon guatemalensis | Native |
| Malheur Sculpin | Cottus bendirei | Native |
| Manantial Roundnose Minnow | Dionda argentosa | Native |
| Mancuernas Silverside | Atherinella pellosemeion | Native |
| Mangrove Goby | Mugilogobius cavifrons | Exotic |
| Mangrove Molly | Poecilia orri | Native |
| Mangrove Rivulus | Kryptolebias marmoratus | Native |
| Marbled Darter | Etheostoma marmorpinnum | Native |
| Marbled Sculpin | Cottus klamathensis | Native |
| Marbled Swamp Eel | Synbranchus marmoratus | Native |
| Margined Madtom | Noturus insignis | Native |
| Margined Sculpin | Cottus marginatus | Native |
| Marquesan Sardine | Sardinella marquesensis | Exotic |
| Marsh Killifish | Fundulus confluentus | Native |
| Maryland Darter | Etheostoma sellare | Native |
| Mascota Jumprock | Moxostoma mascotae | Native |
| Maya Gambusia | Heterophallus echeagarayi | Native |
| Maya Needlefish | Strongylura hubbsi | Native |
| Mayan Cichlid | Cichlasoma urophthalmus | Exotic |
| Mayan Tetra | Hyphessobrycon compressus | Native |
| Meramec Saddled Darter | Etheostoma erythrozonum | Native |
| Mesa Silverside | Chirostoma jordani | Native |
| Metallic Shiner | Pteronotropis metallicus | Native |
| Metynnis | Metynnis sp. | Exotic |
| Mexican Brook Lamprey | Tetrapleurodon geminis | Native |
| Mexican Clingfish | Gobiesox mexicanus | Native |
| Mexican Freshwater Toadfish | Batrachoides goldmani | Native |
| Mexican Goby | Ctenogobius claytonii | Native |
| Mexican Lamprey | Tetrapleurodon spadiceus | Native |
| Mexican Mojarra | Eugerres mexicanus | Native |
| Mexican Molly | Poecilia sphenops | Exotic |
| Mexican Redhorse | Moxostoma austrinum | Native |
| Mexican River Gizzard Shad | Dorosoma anale | Native |
| Mexican Stoneroller | Campostoma ornatum | Native |
| Mexican Tetra | Astyanax mexicanus | Native |
| Mezquital Pupfish | Cyprinodon meeki | Native |
| Mezquital Silverside | Chirostoma mezquital | Native |
| Michoacan Livebearer | Poeciliopsis scarlli | Native |
| Midas Cichlid | Amphilophus citrinellus | Exotic |
| Miller Lake Lamprey | Lampetra minima | Native |
| Mimic Shiner | Notropis volucellus | Native |
| Minkley's Cichlid | Herichthys minckleyi | Native |
| Miraflores Goby | Microgobius miraflorensis | Native |
| Mirror Shiner | Notropis spectrunculus | Native |
| Mississippi Silverside | Menidia audens | Native |
| Mississippi Silvery Minnow | Hybognathus nuchalis | Native |
| Missouri Saddled Darter | Etheostoma tetrazonum | Native |
| Moapa Dace | Moapa coriacea | Native |
| Mobile Logperch | Percina kathae | Native |
| Modoc Brook Lamprey | Lampetra folletti | Native |
| Modoc Sucker | Catostomus microps | Native |
| Moga | Hypsophrys nicaraguensis | Exotic |
| Montecristo Cichlid | Theraps heterospilus | Native |
| Montezuma Swordtail | Xiphophorus montezumae | Native |
| Mooneye | Hiodon tergisus | Native |
| Mottled Sculpin | Cottus bairdii | Native |
| Mountain Brook Lamprey | Ichthyomyzon greeleyi | Native |
| Mountain Chub | Algansea monticola | Native |
| Mountain Clingfish | Gobiesox fluviatilis | Native |
| Mountain Madtom | Noturus eleutherus | Native |
| Mountain Mullet | Agonostomus monticola | Native |
| Mountain Redbelly Dace | Chrosomus oreas | Native |
| Mountain Shiner | Lythrurus lirus | Native |
| Mountain Sucker | Catostomus platyrhynchus | Native |
| Mountain Swordatail | Xiphophorus nezahualcoyotl | Native |
| Mountain Whitefish | Prosopium williamsoni | Native |
| Mozambique Tilapia | Oreochromis mossambicus | Exotic |
| Mud Darter | Etheostoma asprigene | Native |
| Mud Sunfish | Acantharchus pomotis | Native |
| Multispotted Goby | Sicydium multipunctatum | Native |
| Mummichog | Fundulus heteroclitus | Native |
| Muscadine Darter | Percina smithvanizi | Native |
| Muskellunge | Esox masquinongy | Native |
| Naked Sand Darter | Ammocrypta beanii | Native |
| Naked Silverside | Atherinella lisa | Native |
| Naniha Goby | Stenogobius hawaiiensis | Native |
| Nautla Cichlid | Herichthys deppii | Native |
| Nazas Chub | Gila conspersa | Native |
| Nazas Pupfish | Cyprinodon nazas | Native |
| Nazas Shiner | Notropis nazas | Native |
| Nazas Sucker | Catostomus nebuliferus | Native |
| Neosho Madtom | Noturus placidus | Native |
| New River Shiner | Notropis scabriceps | Native |
| Niangua Darter | Etheostoma nianguae | Native |
| Nile Tilapia | Oreochromis niloticus | Exotic |
| Ninespine Stickleback | Pungitius pungitius | Native |
| Nipigon Cisco | Coregonus nipigon | Native |
| No Common Name | Astyanax finitimus | Native |
| No Common Name | Astyanax angustifrons | Native |
| Nooksack Dace | Rhinichthys sp. 4 | Native |
| Nopoli Rockclimbing Goby | Sicyopterus stimpsoni | Native |
| Northern Bowfin | Amia ocellicauda | Native |
| Northern Brook Lamprey | Ichthyomyzon fossor | Native |
| Northern Cavefish | Amblyopsis spelaea | Native |
| Northern Checkmark Cichlid | Theraps intermedius | Native |
| Northern Hog Sucker | Hypentelium nigricans | Native |
| Northern Leatherside Chub | Lepidomeda copei | Native |
| Northern Madtom | Noturus stigmosus | Native |
| Northern Pike | Esox lucius | Native |
| Northern Pikeminnow | Ptychocheilus oregonensis | Native |
| Northern Plains Killifish | Fundulus kansae | Native |
| Northern Redbelly Dace | Chrosomus eos | Native |
| Northern Snakehead | Channa argus | Exotic |
| Northern Studfish | Fundulus catenatus | Native |
| Northern Sunfish | Lepomis peltastes | Native |
| Notchlip Redhorse | Moxostoma collapsum | Native |
| Nueces Roundnose Minnow | Dionda serena | Native |
| O'Opu Alamo'o | Lentipes concolor | Native |
| Oaxaca Cichlid | Paraneetroplus zonatus | Native |
| Oaxaca Killifish | Profundulus punctatus | Native |
| Obscure Swamp Eel | Ophisternon aenigmaticum | Native |
| Ocellated Killifish | Floridichthys polyommus | Native |
| Ocmulgee Shiner | Cyprinella callisema | Native |
| Ohio Lamprey | Ichthyomyzon bdellium | Native |
| Okaloosa Darter | Etheostoma okaloosae | Native |
| Okefenokee Pygmy Sunfish | Elassoma okefenokee | Native |
| Olive Darter | Percina squamata | Native |
| Olive Skiffia | Skiffia lermae | Native |
| Olmec Priapella | Priapella olmecae | Native |
| Olympic Mudminnow | Novumbra hubbsi | Native |
| Opal Allotoca | Allotoca dugesii | Native |
| Opossum Pipefish | Microphis brachyurus | Native |
| Orangebelly Darter | Etheostoma radiosum | Native |
| Orangefin Darter | Etheostoma bellum | Native |
| Orangefin Madtom | Noturus gilberti | Native |
| Orangefin Shiner | Notropis ammophilus | Native |
| Orangemouth Corvina | Cynoscion xanthulus | Exotic |
| Orangespotted Sunfish | Lepomis humilis | Native |
| Orangetail Shiner | Pteronotropis merlini | Native |
| Orangethroat Darter | Etheostoma spectabile | Native |
| Oregon Chub | Oregonichthys crameri | Native |
| Oriental Weatherfish | Misgurnus anguillicaudatus | Exotic |
| Orinoco Sailfin Catfish | Pterygoplichthys multiradiatus | Exotic |
| Ornate Shiner | Codoma ornata | Native |
| Oscar | Astronotus ocellatus | Exotic |
| Ouachita Darter | Percina sp. 12 | Native |
| Ouachita Madtom | Noturus lachneri | Native |
| Ouachita Shiner | Lythrurus snelsoni | Native |
| Owens River Pupfish | Cyprinodon radiosus | Native |
| Owens Sucker | Catostomus fumeiventris | Native |
| Ozark Bass | Ambloplites constellatus | Native |
| Ozark Cavefish | Amblyopsis rosae | Native |
| Ozark Chub | Erimystax harryi | Native |
| Ozark Darter | Etheostoma sp. 7 | Native |
| Ozark Logperch | Percina fulvitaenia | Native |
| Ozark Madtom | Noturus albater | Native |
| Ozark Minnow | Notropis nubilus | Native |
| Ozark Sculpin | Cottus hypselurus | Native |
| Ozark Shiner | Notropis ozarcanus | Native |
| P?nuco Minnow | Tampichthys catostomops | Native |
| Pacific Dog Snapper | Lutjanus novemfasciatus | Native |
| Pacific Fat Sleeper | Dormitator latifrons | Native |
| Pacific Flagfin Mojarra | Eucinostomus currani | Native |
| Pacific Foureyed Fish | Anableps dowi | Native |
| Pacific Gizzard Shad | Dorosoma smithi | Native |
| Pacific Lamprey | Lampetra tridentata | Native |
| Pacific Molly | Poecilia butleri | Native |
| Pacific Sleeper | Gobiomorus maculatus | Native |
| Pacific Staghorn Sculpin | Leptocottus armatus | Native |
| Paddlefish | Polyodon spathula | Native |
| Pahranagat Spinedace | Lepidomeda altivelis | Native |
| Pahrump Poolfish | Empetrichthys latos | Native |
| Paiute Sculpin | Cottus beldingii | Native |
| Pale Catfish | Rhamdia guatemalensis | Native |
| Paleback Darter | Etheostoma pallididorsum | Native |
| Palenque Priapella | Priapella compressa | Native |
| Palezone Shiner | Notropis albizonatus | Native |
| Pallid Shiner | Hybopsis amnis | Native |
| Pallid Sturgeon | Scaphirhynchus albus | Native |
| Panamic Sergeant Major | Abudefduf troschelii | Native |
| Pantano Cichlid | Cichlasoma pearsei | Native |
| Panuco Gambusia | Gambusia panuco | Native |
| Papaloapan Chub | Notropis moralesi | Native |
| Paraneetroplus [Theraps] Hybrid | Paraneetroplus melanurus x P. zonatus | Exotic |
| Patzcuaro Allotoca | Allotoca diazi | Native |
| Pátzcuaro Chub | Algansea lacustris | Native |
| Patzcuaro Silverside | Chirostoma patzcuaro | Native |
| Peacock Hind | Cephalopholis argus | Exotic |
| Pealip Redhorse | Moxostoma pisolabrum | Native |
| Peamouth | Mylocheilus caurinus | Native |
| Pearl Dace | Margariscus margarita | Native |
| Pearl Darter | Percina aurora | Native |
| Pearl River Bass | Micropterus cf. henshali | Native |
| Pecos Gambusia | Gambusia nobilis | Native |
| Pecos Pupfish | Cyprinodon pecosensis | Native |
| Peppered Shiner | Notropis perpallidus | Native |
| Phantom Shiner | Notropis orca | Native |
| Picotee Goodeid | Zoogoneticus quitzeoensis | Native |
| Picotee Livebearer | Phallichthys fairweatheri | Native |
| Piebald Madtom | Noturus gladiator | Native |
| Piedmont Darter | Percina crassa | Native |
| Pike Killifish | Belonesox belizanus | Exotic |
| Pike Silverside | Chirostoma estor | Native |
| Pikikirjoahven | Paraneetroplus melanurus | Native |
| Pinewoods Darter | Etheostoma mariae | Native |
| Pinewoods Shiner | Lythrurus matutinus | Native |
| Pink Salmon | Oncorhynchus gorbuscha | Native |
| Pirate Perch | Aphredoderus sayanus | Native |
| Pit Sculpin | Cottus pitensis | Native |
| Pit-klamath Brook Lamprey | Lampetra lethophaga | Native |
| Plains Killifish | Fundulus zebrinus | Native |
| Plains Minnow | Hybognathus placitus | Native |
| Plains Topminnow | Fundulus sciadicus | Native |
| Plateau Shiner | Cyprinella lepida | Native |
| Platyfish | Xiphophorus sp. | Exotic |
| Platyfish/Swordtail | Xiphophorus hellerii x variatus | Exotic |
| Polka-Dot Splitfin | Chapalichthys pardalis | Native |
| Popeye Shiner | Notropis ariommus | Native |
| Porthole Livebearer | Poeciliopsis gracilis | Exotic |
| Potomac Sculpin | Cottus girardi | Native |
| Prairie Chub | Macrhybopsis australis | Native |
| Pretty Shiner | Lythrurus bellus | Native |
| Prickly Sculpin | Cottus asper | Native |
| Proserpine Shiner | Cyprinella proserpina | Native |
| Pugnose Minnow | Opsopoeodus emiliae | Native |
| Pugnose Shiner | Notropis anogenus | Native |
| Pumpkinseed | Lepomis gibbosus | Native |
| Purplemouth Grunt | Pomadasys bayanus | Native |
| Pygmy Killifish | Leptolucania ommata | Native |
| Pygmy Madtom | Noturus stanauli | Native |
| Pygmy Sculpin | Cottus paulus | Native |
| Pygmy Shiner | Notropis tropicus | Native |
| Pygmy Whitefish | Prosopium coulterii | Native |
| Quillback | Carpiodes cyprinus | Native |
| Quitobaquito Pupfish | Cyprinodon eremus | Native |
| Railroad Valley Springfish | Crenichthys nevadae | Native |
| Rainbow Characodon | Characodon lateralis | Native |
| Rainbow Darter | Etheostoma caeruleum | Native |
| Rainbow Krib | Pelvicachromis pulcher | Exotic |
| Rainbow Shiner | Notropis chrosomus | Native |
| Rainbow Smelt | Osmerus mordax | Native |
| Rainbow Trout or Steelhead | Oncorhynchus mykiss | Native |
| Rainwater Killifish | Lucania parva | Native |
| Ranch Silverside | Chirostoma consocium | Native |
| Razorback Sucker | Xyrauchen texanus | Native |
| Red Devil | Amphilophus labiatus | Exotic |
| Red Fin Spilurus | Cryptoheros chetumalensis | Native |
| Red Hake | Urophycis chuss | Native |
| Red River Pupfish | Cyprinodon rubrofluviatilis | Native |
| Red River Shiner | Notropis bairdi | Native |
| Red Shiner | Cyprinella lutrensis | Native |
| Red Swordtail | Xiphophorus hellerii x maculatus | Exotic |
| Red-bellied Pacu | Piaractus brachypomus | Exotic |
| Redband Darter | Etheostoma luteovinctum | Native |
| Redbelly Tilapia | Tilapia zillii | Exotic |
| Redbreast Sunfish | Lepomis auritus | Native |
| Redbreast Tilapia | Tilapia rendalli | Exotic |
| Redear Sunfish | Lepomis microlophus | Native |
| Redeye Bass | Micropterus coosae | Native |
| Redeye Chub | Notropis harperi | Native |
| Redface Topminnow | Fundulus rubrifrons | Native |
| Redfin Darter | Etheostoma whipplei | Native |
| Redfin Needlefish | Strongylura notata | Native |
| Redfin Pickerel | Esox americanus | Native |
| Redfin Shiner | Lythrurus umbratilis | Native |
| Redhead Cichlid | Paraneetroplus synspilus | Exotic |
| Redline Darter | Etheostoma rufilineatum | Native |
| Redlip Shiner | Notropis chiliticus | Native |
| Redlips Darter | Etheostoma maydeni | Native |
| Redside Cichlid | Cichlasoma istlanum | Native |
| Redside Dace | Clinostomus elongatus | Native |
| Redside Shiner | Richardsonius balteatus | Native |
| Redspot Chub | Nocomis asper | Native |
| Redspot Darter | Etheostoma artesiae | Native |
| Redspotted Sunfish | Lepomis miniatus | Native |
| Redtail Chub | Nocomis effusus | Native |
| Redtail Splitfin | Xenotoca eiseni | Native |
| Reef Silverside | Hypoatherina harringtonensis | Native |
| Relict Dace | Relictus solitarius | Native |
| Relict Darter | Etheostoma chienense | Native |
| Relict Splitfin | Xenoophorus captivus | Native |
| Remote Chub | Algansea avia | Native |
| Reticulate Sculpin | Cottus perplexus | Native |
| Ribbon Shiner | Lythrurus fumeus | Native |
| Riffle Chub | Algansea aphanea | Native |
| Riffle Minnow | Phenacobius catostomus | Native |
| Riffle Sculpin | Cottus gulosus | Native |
| Rio Grande Chub | Gila pandora | Native |
| Rio Grande Cichlid | Cichlasoma cyanoguttatum | Native |
| Rio Grande Darter | Etheostoma grahami | Native |
| Rio Grande Shiner | Notropis jemezanus | Native |
| Rio Grande Silvery Minnow | Hybognathus amarus | Native |
| Rio Grande Sucker | Catostomus plebeius | Native |
| Rio Verde Catfish | Ictalurus mexicanus | Native |
| River Carpsucker | Carpiodes carpio | Native |
| River Chub | Nocomis micropogon | Native |
| River Darter | Percina shumardi | Native |
| River Goby | Awaous banana | Native |
| River Lamprey | Lampetra ayresii | Native |
| River Redhorse | Moxostoma carinatum | Native |
| River Shiner | Notropis blennius | Native |
| Riverweed Darter | Etheostoma podostemone | Native |
| Roanoke Bass | Ambloplites cavifrons | Native |
| Roanoke Darter | Percina roanoka | Native |
| Roanoke Hog Sucker | Hypentelium roanokense | Native |
| Roanoke Logperch | Percina rex | Native |
| Robust Gambusia | Gambusia marshi | Native |
| Robust Redhorse | Moxostoma robustum | Native |
| Rock Bass | Ambloplites rupestris | Native |
| Rock Darter | Etheostoma rupestre | Native |
| Rock Gunnel | Pholis gunnellus | Native |
| Rocky Shiner | Notropis suttkusi | Native |
| Rosy Barb | Puntius conchonius | Exotic |
| Rosyface Chub | Hybopsis rubrifrons | Native |
| Rosyface Shiner | Notropis rubellus | Native |
| Rosyface Shiner group - Upper New River | Notropis sp. 1 | Native |
| Rosyside Dace | Clinostomus funduloides | Native |
| Rough Sculpin | Cottus asperrimus | Native |
| Rough Shiner | Notropis baileyi | Native |
| Roughhead Shiner | Notropis semperasper | Native |
| Round Goby | Neogobius melanostomus | Exotic |
| Round Whitefish | Prosopium cylindraceum | Native |
| Roundnose Minnow | Dionda episcopa | Native |
| Roundtail Chub | Gila robusta | Native |
| Rudd | Scardinius erythrophthalmus | Exotic |
| Ruffe | Gymnocephalus cernua | Exotic |
| Rush Darter | Etheostoma phytophilum | Native |
| Russetfin Topminnow | Fundulus escambiae | Native |
| Rustyside Sucker | Thoburnia hamiltoni | Native |
| Sabine Shiner | Notropis sabinae | Native |
| Sacramento Blackfish | Orthodon microlepidotus | Native |
| Sacramento Perch | Archoplites interruptus | Native |
| Sacramento Pikeminnow | Ptychocheilus grandis | Native |
| Sacramento Sucker | Catostomus occidentalis | Native |
| Saddleback Darter | Percina vigil | Native |
| Saddled Madtom | Noturus fasciatus | Native |
| Saffron Darter | Etheostoma flavum | Native |
| Saffron Shiner | Notropis rubricroceus | Native |
| Sailfin Catfish | Pterygoplichthys sp. | Exotic |
| Sailfin Molly | Poecilia latipinna | Native |
| Sailfin Shiner | Pteronotropis hypselopterus | Native |
| Salish Sucker | Catostomus sp. 4 | Native |
| Salt Creek Pupfish | Cyprinodon salinus | Native |
| Saltmarsh Topminnow | Fundulus jenkinsi | Native |
| San Domingo Cichlid | Thorichthys callolepis | Native |
| San Felipe Gambusia | Gambusia clarkhubbsi | Native |
| San Jeronimo Livebearer | Poeciliopsis fasciata | Native |
| San Marcos - Redtail Splitfin | Xenotoca doadrioi | Native |
| San Marcos Gambusia | Gambusia georgei | Native |
| Sand Fish | Awaous tajasica | Native |
| Sand Roller | Percopsis transmontana | Native |
| Sand Shiner | Notropis stramineus | Native |
| Sandbar Shiner | Notropis scepticus | Native |
| Sandhills Chub | Semotilus lumbee | Native |
| Santa Ana Sucker | Catostomus santaanae | Native |
| Santa Cruz Pupfish | Cyprinodon arcuatus | Native |
| Santee Chub | Cyprinella zanema | Native |
| Sarabia Cichlid | Paraneetroplus bulleri | Native |
| Satinfin Shiner | Cyprinella analostana | Native |
| Sauger | Sander canadensis | Native |
| Savannah Darter | Etheostoma fricksium | Native |
| Sawcheek Darter | Etheostoma serrifer | Native |
| Sawfin Shiner | Notropis sp. 4 | Native |
| Scaly Sand Darter | Ammocrypta vivax | Native |
| Scarlet Shiner | Lythrurus fasciolaris | Native |
| Schoolmaster Snapper | Lutjanus apodus | Native |
| Scioto Madtom | Noturus trautmani | Native |
| Sea Lamprey | Petromyzon marinus | Native |
| Seagreen Darter | Etheostoma thalassinum | Native |
| Seminole Killifish | Fundulus seminolis | Native |
| Shadow Bass | Ambloplites ariommus | Native |
| Sharpfin Chubsucker | Erimyzon tenuis | Native |
| Sharphead Darter | Etheostoma acuticeps | Native |
| Sharpnose Darter | Percina oxyrhynchus | Native |
| Sharpnose Shiner | Notropis oxyrhynchus | Native |
| Sharpnose Silverside | Chirostoma labarcae | Native |
| Shawnee Darter | Etheostoma tecumsehi | Native |
| Sheepshead Minnow | Cyprinodon variegatus | Native |
| Sheltowee Darter | Etheostoma sp. 9 | Native |
| Shield Darter | Percina peltata | Native |
| Shimofuri Goby | Tridentiger bifasciatus | Exotic |
| Shiner Perch | Cymatogaster aggregata | Native |
| Shoal Bass | Micropterus cataractae | Native |
| Shoal Chub | Macrhybopsis hyostoma | Native |
| Shokihaze Goby | Tridentiger barbatus | Exotic |
| Short-sword Platyfish | Xiphophorus continens | Native |
| Shortfin Molly | Poecilia mexicana | Exotic |
| Shortfin silverside | Chirostoma humboldtianum | Native |
| Shorthead Redhorse | Moxostoma macrolepidotum | Native |
| Shorthead Sculpin | Cottus confusus | Native |
| Shortjaw Cisco | Coregonus zenithicus | Native |
| Shortnose Cisco | Coregonus reighardi | Native |
| Shortnose Gar | Lepisosteus platostomus | Native |
| Shortnose Sturgeon | Acipenser brevirostrum | Native |
| Shortnose Sucker | Chasmistes brevirostris | Native |
| Shoshone Sculpin | Cottus greenei | Native |
| Shovelnose Sturgeon | Scaphirhynchus platorynchus | Native |
| Sickle Darter | Percina williamsi | Native |
| Sicklefin Chub | Macrhybopsis meeki | Native |
| Sicklefin Redhorse | Moxostoma sp. 2 | Native |
| Sieve Cichlid | Cichlasoma grammodes | Native |
| Silver Carp | Hypophthalmichthys molitrix | Exotic |
| Silver Chub | Macrhybopsis storeriana | Native |
| Silver Hake | Merluccius bilinearis | Native |
| Silver Lamprey | Ichthyomyzon unicuspis | Native |
| Silver Redhorse | Moxostoma anisurum | Native |
| Silver Shiner | Notropis photogenis | Native |
| Silver Trout | Salvelinus agassizii | Native |
| Silverband Shiner | Notropis shumardi | Native |
| Silverjaw Minnow | Notropis buccatus | Native |
| Silverside Shiner | Notropis candidus | Native |
| Silverstripe Shiner | Notropis stilbius | Native |
| Sinaloa Livebearer | Poeciliopsis presidionis | Native |
| Sipsey Darter | Etheostoma sp. 13 | Native |
| Skipjack Herring | Alosa chrysochloris | Native |
| Skygazer Shiner | Notropis uranoscopus | Native |
| Slabrock Darter | Etheostoma smithi | Native |
| Slackwater Darter | Etheostoma boschungi | Native |
| Slashcheek Goby | Ctenogobius pseudofasciatus | Native |
| Slender Chub | Erimystax cahni | Native |
| Slender Madtom | Noturus exilis | Native |
| Slender Redhorse | Moxostoma pappillosum | Native |
| Slender Sculpin | Cottus tenuis | Native |
| Slender Silverside | Chirostoma attenuatum | Native |
| Slenderhead Darter | Percina phoxocephala | Native |
| Slim Minnow | Pimephales tenellus | Native |
| Slimy Sculpin | Cottus cognatus | Native |
| Slough Darter | Etheostoma gracile | Native |
| Smalleye Shiner | Notropis buccula | Native |
| Smallmouth Bass | Micropterus dolomieu | Native |
| Smallmouth Buffalo | Ictiobus bubalus | Native |
| Smallmouth Redhorse | Moxostoma breviceps | Native |
| Smallmouth Silverside | Chirostoma chapalae | Native |
| Smallscale Darter | Etheostoma microlepidum | Native |
| Smallscaled Spinycheek Sleeper | Eleotris perniger | Native |
| Smoky Madtom | Noturus baileyi | Native |
| Smoothbelly Goby | Sicydium gymnogaster | Native |
| Snail Bullhead | Ameiurus brunneus | Native |
| Snail Darter | Percina tanasi | Native |
| Snake River Sucker | Chasmistes muriei | Native |
| Snubnose Darter | Etheostoma simoterum | Native |
| Sockeye Salmon | Oncorhynchus nerka | Native |
| Sonora Chub | Gila ditaenia | Native |
| Sonora Sucker | Catostomus insignis | Native |
| Sooty Darter | Etheostoma olivaceum | Native |
| Soto la Marina Shiner | Notropis aguirrepequenoi | Native |
| Southeastern Blue Sucker | Cycleptus meridionalis | Native |
| Southern Brook Lamprey | Ichthyomyzon gagei | Native |
| Southern Cavefish | Typhlichthys subterraneus | Native |
| Southern Flounder | Paralichthys lethostigma | Native |
| Southern Leatherside Chub | Lepidomeda aliciae | Native |
| Southern Logperch | Percina austroperca | Native |
| Southern Platyfish | Xiphophorus maculatus | Exotic |
| Southern Redbelly Dace | Chrosomus erythrogaster | Native |
| Southern Sailfin Catfish | Pterygoplichthys anisitsi | Exotic |
| Southern Sand Darter | Ammocrypta meridiana | Native |
| Southern Studfish | Fundulus stellifer | Native |
| Spangled Darter | Etheostoma obama | Native |
| Speckled Chub | Macrhybopsis aestivalis | Native |
| Speckled Dace | Rhinichthys osculus | Native |
| Speckled Darter | Etheostoma stigmaeum | Native |
| Speckled Killifish | Fundulus rathbuni | Native |
| Speckled Madtom | Noturus leptacanthus | Native |
| Spikedace | Meda fulgida | Native |
| Splendid Darter | Etheostoma barrenense | Native |
| Splittail | Pogonichthys macrolepidotus | Native |
| Spoonhead Sculpin | Cottus ricei | Native |
| Spot Sroaker | Leiostomus xanthurus | Native |
| Spotcheek Cichlid | Thorichthys ellioti | Native |
| Spotfin Chub | Erimonax monachus | Native |
| Spotfin Killifish | Fundulus luciae | Native |
| Spotfin Shiner | Cyprinella spiloptera | Native |
| Spotfin Spiny Eel | Macrognathus siamensis | Exotic |
| Spottail Chub | Algansea tincella | Native |
| Spottail Darter | Etheostoma squamiceps | Native |
| Spottail Shiner | Notropis hudsonius | Native |
| Spotted Bass | Micropterus punctulatus | Native |
| Spotted Bullhead | Ameiurus serracanthus | Native |
| Spotted Darter | Etheostoma maculatum | Native |
| Spotted Gar | Lepisosteus oculatus | Native |
| Spotted Skiffia | Skiffia multipunctata | Native |
| Spotted Sleeper | Eleotris picta | Native |
| Spotted Sucker | Minytrema melanops | Native |
| Spotted Sunfish | Lepomis punctatus | Native |
| Spotted Tilapia | Tilapia mariae | Exotic |
| Spotted Whitefish | Prosopium sp. 1 | Native |
| Spottedfin Sole | Trinectes fonsecensis | Native |
| Spring Cavefish | Forbesichthys agassizii | Native |
| Spring Pygmy Sunfish | Elassoma alabamae | Native |
| Stargazing Darter | Percina uranidea | Native |
| Stargazing Minnow | Phenacobius uranops | Native |
| Starhead Topminnow | Fundulus dispar | Native |
| Steelcolor Shiner | Cyprinella whipplei | Native |
| Steindachner's Cichlid | Herichthys steindachneri | Native |
| Stippled Darter | Etheostoma punctulatum | Native |
| Stippled Studfish | Fundulus bifax | Native |
| Stone Darter | Etheostoma derivativum | Native |
| Stonecat | Noturus flavus | Native |
| Strawberry Darter | Etheostoma fragi | Native |
| Streamline Chub | Erimystax dissimilis | Native |
| Striated Darter | Etheostoma striatulum | Native |
| Stripeback Darter | Percina notogramma | Native |
| Striped Bass | Morone saxatilis | Native |
| Striped Darter | Etheostoma virgatum | Native |
| Striped Herring | Lile stolifera | Native |
| Striped Jumprock | Moxostoma rupiscartes | Native |
| Striped Killifish | Fundulus majalis | Native |
| Striped Mojarra | Diapterus plumieri | Native |
| Striped Mullet | Mugil cephalus | Native |
| Striped Shiner | Luxilus chrysocephalus | Native |
| Stripetail Darter | Etheostoma kennicotti | Native |
| Sturgeon Chub | Macrhybopsis gelida | Native |
| Suckermouth Catfish | Hypostomus plecostomus | Exotic |
| Suckermouth Catfish | Hypostomus sp. | Exotic |
| Suckermouth Catfish | Hypostomus sp. (watwata group) | Exotic |
| Suckermouth Minnow | Phenacobius mirabilis | Native |
| Summer Sucker | Catostomus utawana | Native |
| Sunburst Darter | Etheostoma mihileze | Native |
| Suwannee Bass | Micropterus notius | Native |
| Swallowtail Shiner | Notropis procne | Native |
| Swamp Darter | Etheostoma fusiforme | Native |
| Swampfish | Chologaster cornuta | Native |
| Swannanoa Darter | Etheostoma swannanoa | Native |
| Sword of Catemaco | Xiphophorus kallmani | Native |
| Swordspine Snook | Centropomus ensiferus | Native |
| Tadpole Madtom | Noturus gyrinus | Native |
| Tahoe Sucker | Catostomus tahoensis | Native |
| Tailbar Cichlid | Paraneetroplus hartwegi | Native |
| Taillight Shiner | Notropis maculatus | Native |
| Tallapoosa Bass | Micropterus tallapoosae | Native |
| Tallapoosa Darter | Etheostoma tallapoosae | Native |
| Tallapoosa Sculpin | Cottus tallapoosae | Native |
| Tallapoosa Shiner | Cyprinella gibbsi | Native |
| Tamasopo Cichlid | Herichthys tamasopoensis | Native |
| Tamaulipas Shiner | Notropis braytoni | Native |
| Tamazula Redtail Splitfin | Xenotoca lyonsi | Native |
| Tambaqui | Colossoma macropomum | Exotic |
| Tangerine Darter | Percina aurantiaca | Native |
| Tarpon Snook | Centropomus pectinatus | Native |
| Tasseled Blenny | Parablennius thysanius | Exotic |
| Teardrop Darter | Etheostoma barbouri | Native |
| Teardrop Mosquito | Gambusia sexradiata | Native |
| Telescope Shiner | Notropis telescopus | Native |
| Tench | Tinca tinca | Exotic |
| Tennessee Dace | Chrosomus tennesseensis | Native |
| Tennessee Darter | Etheostoma tennesseense | Native |
| Tennessee Shiner | Notropis leuciodus | Native |
| Tepehuan Shiner | Cyprinella alvarezdelvillari | Native |
| Tequila Splitfin | Zoogoneticus tequila | Native |
| Tessellated Blenny | Hypsoblennius invemar | Exotic |
| Tessellated Darter | Etheostoma olmstedi | Native |
| Tex-Mex Gambusia | Gambusia speciosa | Native |
| Texas Cichlid | Herichthys cyanoguttatus | Exotic |
| Texas Logperch | Percina carbonaria | Native |
| Texas Shiner | Notropis amabilis | Native |
| Thicklip Chub | Cyprinella labrosa | Native |
| Thicktail Chub | Gila crassicauda | Native |
| Thinlip Chub | Cyprinella sp. 1 | Native |
| Threadfin Shad | Dorosoma petenense | Native |
| Three-spot Gourami | Trichogaster trichopterus | Exotic |
| Threespine Stickleback | Gasterosteus aculeatus | Native |
| Tidewater Goby | Eucyclogobius newberryi | Native |
| Tiger Barb | Puntius tetrazona | Exotic |
| Tiger Trout | Salmo x Salvelinus trutta x fontinalis | Exotic |
| Tilapia | Tilapia sp. | Exotic |
| Tilapia Species | Oreochromis sp. | Exotic |
| Tippecanoe Darter | Etheostoma tippecanoe | Native |
| Toluca Silverside | Chirostoma riojai | Native |
| Tombigbee Darter | Etheostoma lachneri | Native |
| Tomtate Grunt | Haemulon aurolineatum | Native |
| Tonala Catfish | Rhamdia parryi | Native |
| Tonguetied Minnow | Exoglossum laurae | Native |
| Toothless Blindcat | Trogloglanis pattersoni | Native |
| Topeka Shiner | Notropis topeka | Native |
| Torrent Sculpin | Cottus rhotheus | Native |
| Torrent Sucker | Thoburnia rhothoeca | Native |
| Tricolor Shiner | Cyprinella trichroistia | Native |
| Trimac Cichlid | Cichlasoma trimaculatum | Native |
| Trispot Darter | Etheostoma trisella | Native |
| Tropical Gar | Atractosteus tropicus | Native |
| Trout-perch | Percopsis omiscomaycus | Native |
| Tube-nosed Goby | Proterorhinus marmoratus | Exotic |
| Tubenose Goby | Proterorhinus semilunaris | Exotic |
| Tuckasegee Darter | Etheostoma gutselli | Native |
| Tufa Darter | Etheostoma lugoi | Native |
| Tui Chub | Gila bicolor | Native |
| Tule Perch | Hysterocarpus traskii | Native |
| Turquoise Darter | Etheostoma inscriptum | Native |
| Tuscumbia Darter | Etheostoma tuscumbia | Native |
| Tuskaloosa Darter | Etheostoma douglasi | Native |
| Tuxedo Darter | Etheostoma lemniscatum | Native |
| Tuxpan Splitfin | Allodontichthys tamazulae | Native |
| Twoband Cichlid | Paraneetroplus bifasciatus | Native |
| Twoline Skiffia | Skiffia bilineata | Native |
| Twospot Livebearer | Heterandria bimaculata | Native |
| Umatilla Dace | Rhinichthys umatilla | Native |
| Umpqua Dace | Rhinichthys evermanni | Native |
| Umpqua Oregon Chub | Oregonichthys kalawatseti | Native |
| Umpqua Pikeminnow | Ptychocheilus umpquae | Native |
| Unidentified Poeciliid (Hybrid) | Poecilia sp. | Exotic |
| Unidentified Tilapia | Tilapia sp. | Exotic |
| Unnamed Brook Lamprey | Lampetra sp. 1 | Native |
| Unnamed Carpsucker | Carpiodes sp. cf. cyprinus | Native |
| Unnamed Speckled Dace | Rhinichthys sp. 3 | Native |
| Upper Coosa Darter | Etheostoma sp. 1 | Native |
| Upper Grijalva Livebearer | Poeciliopsis hnilickai | Native |
| Usumacinta Cichlid | Theraps ufermanni | Native |
| Utah Chub | Gila atraria | Native |
| Utah Lake Sculpin | Cottus echinatus | Native |
| Utah Sucker | Catostomus ardens | Native |
| Variable Platyfish | Xiphophorus variatus | Exotic |
| Variegate Darter | Etheostoma variatum | Native |
| Vermiculated Sailfin Catfish | Pterygoplichthys disjunctivus | Exotic |
| Vermilion Darter | Etheostoma chermocki | Native |
| Virgin River Chub | Gila seminuda | Native |
| Virgin Spinedace | Lepidomeda mollispinis | Native |
| Waccamaw Darter | Etheostoma perlongum | Native |
| Waccamaw Killifish | Fundulus waccamensis | Native |
| Waccamaw Silverside | Menidia extensa | Native |
| Wakasagi | Hypomesus nipponensis | Exotic |
| Walking Catfish | Clarias batrachus | Exotic |
| Wall Canyon Sucker | Catostomus sp. 1 | Native |
| Walleye | Sander vitreus | Native |
| Wami Tilapia | Oreochromis urolepis | Exotic |
| Wami Tilapia | Oreochromis urolepis hornorum | Exotic |
| Warioto Darter | Etheostoma gore | Native |
| Warmouth | Lepomis gulosus | Native |
| Warner Sucker | Catostomus warnerensis | Native |
| Warpaint Shiner | Luxilus coccogenis | Native |
| Warrior Bass | Micropterus warriorensis | Native |
| Warrior Darter | Etheostoma bellator | Native |
| Warrior Shiner | Lythrurus alegnotus | Native |
| Watercress Darter | Etheostoma nuchale | Native |
| Wedgespot Shiner | Notropis greenei | Native |
| Weed Shiner | Notropis texanus | Native |
| Western Blacknose Dace | Rhinichthys obtusus | Native |
| Western Brook Lamprey | Lampetra richardsoni | Native |
| Western Creek Chubsucker | Erimyzon claviformis | Native |
| Western Mosquitofish | Gambusia affinis | Native |
| Western Sand Darter | Ammocrypta clara | Native |
| Western Silvery Minnow | Hybognathus argyritis | Native |
| Westrim Darter | Etheostoma occidentale | Native |
| White Bass | Morone chrysops | Native |
| White Catfish | Ameiurus catus | Native |
| White Cichlid | Paraneetroplus argenteus | Native |
| White Crappie | Pomoxis annularis | Native |
| White Mullet | Mugil curema | Native |
| White Perch | Morone americana | Native |
| White River Sculpin | Cottus sp. 3 | Native |
| White River Spinedace | Lepidomeda albivallis | Native |
| White River Springfish | Crenichthys baileyi | Native |
| White Sands Pupfish | Cyprinodon tularosa | Native |
| White Shiner | Luxilus albeolus | Native |
| White Sturgeon | Acipenser transmontanus | Native |
| White Sucker | Catostomus commersonii | Native |
| Whitefin Shiner | Cyprinella nivea | Native |
| Whiteline Topminnow | Fundulus albolineatus | Native |
| Whitemouth Shiner | Notropis alborus | Native |
| Whitepatched Splitfin | Allodontichthys hubbsi | Native |
| Whitespotted Clarias | Clarias fuscus | Exotic |
| Whitetail Shiner | Cyprinella galactura | Native |
| Widemouth Blindcat | Satan eurystomus | Native |
| Windowpane Flounder | Scophthalmus aquosus | Native |
| Winter Flounder | Pseudopleuronectes americanus | Native |
| Wolf Cichlid | Parachromis dovii | Exotic |
| Wood River Sculpin | Cottus leiopomus | Native |
| Wounded Darter | Etheostoma vulneratum | Native |
| Woundfin | Plagopterus argentissimus | Native |
| Yaqui Catfish | Ictalurus pricei | Native |
| Yaqui Chub | Gila purpurea | Native |
| Yaqui Sucker | Catostomus bernardini | Native |
| Yazoo Darter | Etheostoma raneyi | Native |
| Yazoo Shiner | Notropis rafinesquei | Native |
| Yellow Bass | Morone mississippiensis | Native |
| Yellow Bullhead | Ameiurus natalis | Native |
| Yellow Cichlid | Thorichthys helleri | Native |
| Yellow Fin Mojarra | Gerres cinereus | Native |
| Yellow Meeki | Thorichthys affinis | Native |
| Yellow Perch | Perca flavescens | Native |
| Yellow Shiner | Notropis calientis | Native |
| Yellow Snapper | Lutjanus argentiventris | Native |
| Yellow Swordtail | Xiphophorus clemenciae | Native |
| Yellowbelly Cichlid | Cichlasoma salvini | Exotic |
| Yellowbelly Pipefish | Pseudophallus starskii | Native |
| Yellowcheek Darter | Etheostoma moorei | Native |
| Yellowfin Goby | Acanthogobius flavimanus | Exotic |
| Yellowfin Madtom | Noturus flavipinnis | Native |
| Yellowfin Shiner | Notropis lutipinnis | Native |
| Yellowjacket Cichlid | Parachromis friedrichsthalii | Native |
| Yellowtail Flounder | Pleuronectes ferruginea | Native |
| Yoke Darter | Etheostoma juliae | Native |
| Yucatan Gambusia | Gambusia yucatana | Native |
| Yucatan Molly | Poecilia velifera | Native |
| Yucatan Pupfish | Cyprinodon artifrons | Native |
| Yucatan Tetra | Astyanax altior | Native |
| Zacapu Allotoca | Allotoca zacapuensis | Native |
| Zacapu Splitfin | Girardinichthys ireneae | Native |
| Zander | Sander lucioperca | Exotic |
| Zebra Danio | Brachydanio rerio | Exotic |
| Zebra Mbuna | Pseudotropheus zebra | Exotic |
| Zebra Tilapia | Tilapia buttikoferi | Exotic |
| Zirahuen Allotica | Allotoca meeki | Native |
FishMap.org Links
- Watersheds
- Species
- Compare Ranges
- Compare Watersheds NEW
- Submit Records
- Resources
- Technology
- FAQ
- Contact & Feedback
- About
- Disclaimer
- API
Change Log
- 02/05/2024 10:01:04
Fixed issue with GBIF data being returned in eventDate field.
- 11/20/2018 11:35:34
Added iDigBio.org collection data to species maps.
- 11/15/2018 15:19:23
Added GBIF.org collection data to species maps.
- 09/20/2018 21:25:13
Started caching Fish Net 2 data. Hopefully this helps with some of the performance issues and loads.
- 09/14/2017 11:15:00
Fixed an issue preventing users from submitting records. Sorry for the inconvience! Please try again.
Data provided by
