List of Freshwater Fishes reported from Guyana
n = 512
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Table 1: 490 species currently present in the country/island (endemic, native, introduced, reintroduced);
Table 2: 11 species possibly present in the country/island (stray, questionable);
Table 3: 11 species demonstrated to be absent in the country/island (extirpated, not established, misidentification, error).
Table 4: 512 species reported from the country/island altogether.
Table 1: 490 species currently present in the country/island.
     
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Order Family Species Occurrence FishBase name Name
Characiformes Anostomidae Abramites hypselonotusnative Marbled headstander  
Characiformes Characidae Acanthocharax microlepisnative   
Siluriformes Doradidae Acanthodoras cataphractusnative Spiny catfish  
Siluriformes Doradidae Acanthodoras spinosissimusnative Talking catfish Kiru-kiru 
Perciformes Cichlidae Acarichthys heckeliinative Threadfin acara  
Perciformes Cichlidae Acaronia nassanative Bigeye cichlid  
Characiformes Acestrorhynchidae Acestrorhynchus falcatusnative   
Characiformes Acestrorhynchidae Acestrorhynchus falcirostrisnative   
Characiformes Acestrorhynchidae Acestrorhynchus microlepisnative Pike characin  
Characiformes Acestrorhynchidae Acestrorhynchus nasutusnative   
Pleuronectiformes Achiridae Achirus achirusnative Drab sole  
Characiformes Serrasalmidae Acnodon oligacanthusnative   
Perciformes Cichlidae Aequidens potaroensisendemic   
Perciformes Cichlidae Aequidens tetramerusnative Saddle cichlid  
Siluriformes Auchenipteridae Ageneiosus inermisnative Manduba  
Siluriformes Auchenipteridae Ageneiosus marmoratusnative Bottlenose catfish  
Siluriformes Auchenipteridae Ageneiosus ucayalensisnative   
Characiformes Triportheidae Agoniates halecinusnative   
Gymnotiformes Hypopomidae Akawaio penakendemic   
Siluriformes Doradidae Amblydoras affinisnative  Saurauwari 
Characiformes Crenuchidae Ammocryptocharax lateralisnative   
Characiformes Crenuchidae Ammocryptocharax vintonaenative   
Cyprinodontiformes Anablepidae Anableps anablepsnative Largescale foureyes Foureye 
Cyprinodontiformes Anablepidae Anableps microlepisnative Foureyes Foureye 
Cyprinodontiformes Rivulidae Anablepsoides holmiaeendemic   
Cyprinodontiformes Rivulidae Anablepsoides lanceolatusendemic   
Cyprinodontiformes Rivulidae Anablepsoides mazaruniendemic   
Cyprinodontiformes Rivulidae Anablepsoides stagnatusnative   
Cyprinodontiformes Rivulidae Anablepsoides waimacuiendemic   
Clupeiformes Engraulidae Anchoa spinifernative Spicule anchovy Herring 
Clupeiformes Engraulidae Anchovia surinamensisnative Surinam anchovy  
Clupeiformes Engraulidae Anchoviella guianensisnative Guyana anchovy  
Clupeiformes Engraulidae Anchoviella lepidentostolenative Broadband anchovy  
Clupeiformes Engraulidae Anchoviella manamensisnative Manamo anchovy  
Siluriformes Loricariidae Ancistrus dolichopterusnative Bushymouth catfish  
Siluriformes Loricariidae Ancistrus hoplogenysnative   
Siluriformes Loricariidae Ancistrus leucostictusnative   
Siluriformes Loricariidae Ancistrus lithurgicusnative   
Siluriformes Loricariidae Ancistrus nudicepsendemic   
Anguilliformes Anguillidae Anguilla rostratanative American eel  
Characiformes Anostomidae Anostomoides laticepsnative   
Characiformes Anostomidae Anostomus anostomusnative Striped headstander  
Characiformes Anostomidae Anostomus ternetzinative   
Characiformes Parodontidae Apareiodon agmatosnative   
Characiformes Parodontidae Apareiodon gransabananative   
Characiformes Characidae Aphyocharacidium melandetumnative   
Characiformes Characidae Aphyocharax erythrurusnative Flametail tetra  
Characiformes Characidae Aphyodite grammicanative   
Pleuronectiformes Achiridae Apionichthys finisnative  Flounder 
Perciformes Cichlidae Apistogramma ortmanninative   
Perciformes Cichlidae Apistogramma rupununinative Two-spot Apistogramma Two-spot Apistogramma 
Perciformes Cichlidae Apistogramma steindachnerinative   
Gymnotiformes Apteronotidae Apteronotus albifronsnative Black ghost  
Gymnotiformes Apteronotidae Apteronotus leptorhynchusnative   
Siluriformes Ariidae Aspistor quadriscutisnative Bressou sea catfish  
Siluriformes Aspredinidae Aspredinichthys filamentosusnative Sevenbarbed banjo  
Siluriformes Aspredinidae Aspredinichthys tibicennative Tenbarbed banjo  
Siluriformes Aspredinidae Aspredo aspredonative Banjo  
Characiformes Characidae Astyanax bimaculatusnative Twospot astyanax  
Characiformes Characidae Astyanax guianensisnative   
Characiformes Characidae Astyanax mutatornative   
Characiformes Characidae Astyanax rupununinative   
Siluriformes Auchenipteridae Auchenipterus ambyiacusnative   
Siluriformes Auchenipteridae Auchenipterus breviornative   
Siluriformes Auchenipteridae Auchenipterus demeraraenative   
Cyprinodontiformes Rivulidae Austrofundulus limnaeusnative   
Cyprinodontiformes Rivulidae Austrofundulus rupununinative   
Perciformes Gobiidae Awaous flavusnative   
Siluriformes Pseudopimelodidae Batrochoglanis raninusnative   
Siluriformes Pseudopimelodidae Batrochoglanis villosusnative   
Perciformes Cichlidae Biotodoma cupidonative Greenstreaked eartheater  
Characiformes Hemiodontidae Bivibranchia bimaculatanative   
Characiformes Hemiodontidae Bivibranchia fowlerinative   
Characiformes Ctenoluciidae Boulengerella cuvierinative   
Characiformes Characidae Brachychalcinus orbicularisnative Discus tetra  
Siluriformes Heptapteridae Brachyglanis frenatusnative   
Siluriformes Heptapteridae Brachyglanis melasendemic   
Siluriformes Heptapteridae Brachyglanis phalacraendemic   
Gymnotiformes Hypopomidae Brachyhypopomus beebeinative   
Gymnotiformes Hypopomidae Brachyhypopomus brevirostrisnative Bluntnose knifefish  
Gymnotiformes Hypopomidae Brachyhypopomus bullockinative   
Gymnotiformes Hypopomidae Brachyhypopomus hendersoninative  Knifefish 
Gymnotiformes Hypopomidae Brachyhypopomus pinnicaudatusnative   
Gymnotiformes Hypopomidae Brachyhypopomus reganinative  Knife fish 
Gymnotiformes Hypopomidae Brachyhypopomus sullivaninative   
Siluriformes Pimelodidae Brachyplatystoma filamentosumnative Kumakuma  
Siluriformes Pimelodidae Brachyplatystoma vaillantiinative Laulao catfish Lalau 
Siluriformes Heptapteridae Brachyrhamdia heteropleuranative   
Characiformes Bryconidae Brycon amazonicusnative   
Characiformes Bryconidae Brycon falcatusnative   
Characiformes Bryconidae Brycon pesunative Mourning tetra Pesu 
Characiformes Characidae Bryconamericus cinarucoensenative   
Characiformes Characidae Bryconamericus hyphessonnative   
Characiformes Iguanodectidae Bryconops affinisnative Orangefin tetra  
Characiformes Iguanodectidae Bryconops caudomaculatusnative Tailspot tetra  
Siluriformes Aspredinidae Bunocephalus amaurusnative Camouflaged catfish  
Siluriformes Aspredinidae Bunocephalus chamaizelusnative   
Siluriformes Aspredinidae Bunocephalus verrucosusnative Gnarled catfish  
Characiformes Chilodontidae Caenotropus labyrinthicusnative   
Characiformes Chilodontidae Caenotropus maculosusnative   
Siluriformes Callichthyidae Callichthys callichthysnative Cascarudo  
Perciformes Cichlidae Caquetaia spectabilisnative   
Carcharhiniformes Carcharhinidae Carcharhinus leucasnative Bull shark  
Characiformes Gasteropelecidae Carnegiella strigatanative Marbled hatchetfish  
Siluriformes Ariidae Cathorops agassiziinative   
Siluriformes Ariidae Cathorops arenatusnative   
Siluriformes Ariidae Cathorops nuchalisnative   
Characiformes Serrasalmidae Catoprion mentonative Wimple piranha  
Siluriformes Auchenipteridae Centromochlus reticulatusnative   
Perciformes Centropomidae Centropomus ensiferusnative Swordspine snook Snoek 
Perciformes Centropomidae Centropomus parallelusnative Fat snook Grabb's snook 
Siluriformes Pseudopimelodidae Cephalosilurus albomarginatusendemic   
Siluriformes Cetopsidae Cetopsidium minutumnative   
Siluriformes Cetopsidae Cetopsidium roaenative   
Siluriformes Cetopsidae Cetopsidium soniaenative   
Perciformes Cichlidae Chaetobranchus flavescensnative  River patwa 
Characiformes Characidae Chalceus epakrosnative   
Characiformes Characidae Chalceus macrolepidotusnative Pinktail chalceus  
Characiformes Characidae Chalceus taeniatusnative   
Characiformes Crenuchidae Characidium amailanative   
Characiformes Crenuchidae Characidium pellucidumnative   
Characiformes Crenuchidae Characidium pteroidesnative   
Characiformes Crenuchidae Characidium steindachnerinative   
Characiformes Crenuchidae Characidium zebranative   
Characiformes Characidae Charax gibbosusnative Glass headstander  
Characiformes Characidae Charax hemigrammusnative   
Characiformes Characidae Charax rupununinative   
Siluriformes Heptapteridae Chasmocranus breviornative   
Siluriformes Heptapteridae Chasmocranus longiornative   
Characiformes Chilodontidae Chilodus punctatusnative Spotted headstander  
Perciformes Cichlidae Cichla ocellarisnative Peacock cichlid Lukanani 
Perciformes Cichlidae Cichla temensisnative Speckled pavon  
Perciformes Cichlidae Cichlasoma bimaculatumnative Black acara Common patwa 
Perciformes Cichlidae Cleithracara maroniinative Keyhole cichlid  
Tetraodontiformes Tetraodontidae Colomesus asellusnative Amazon puffer  
Characiformes Serrasalmidae Colossoma macropomumintroduced Cachama  
Characiformes Lebiasinidae Copella arnoldinative Splash tetra  
Characiformes Lebiasinidae Copella eigenmanninative   
Characiformes Lebiasinidae Copella nattererinative Spotted tetra  
Siluriformes Callichthyidae Corydoras aeneusnative Bronze corydoras  
Siluriformes Callichthyidae Corydoras blochinative Spotback corydoras  
Siluriformes Callichthyidae Corydoras bondinative Blackstripe corydoras  
Siluriformes Callichthyidae Corydoras griseusnative Gray corydoras  
Siluriformes Callichthyidae Corydoras melanistiusnative Bluespotted corydoras  
Siluriformes Callichthyidae Corydoras potaroensisnative   
Siluriformes Callichthyidae Corydoras sipaliwininative   
Siluriformes Loricariidae Corymbophanes andersoninative   
Siluriformes Loricariidae Corymbophanes kaieinative   
Characiformes Characidae Creagrutus melanzonusnative   
Perciformes Cichlidae Crenicara punctulatumnative Checkerboard cichlid  
Perciformes Cichlidae Crenicichla albopunctatanative   
Perciformes Cichlidae Crenicichla altanative Millet  
Perciformes Cichlidae Crenicichla johannanative   
Perciformes Cichlidae Crenicichla lugubrisnative   
Perciformes Cichlidae Crenicichla reticulatanative   
Perciformes Cichlidae Crenicichla saxatilisnative Ringtail pike cichlid  
Perciformes Cichlidae Crenicichla strigatanative   
Perciformes Cichlidae Crenicichla vaillantinative   
Perciformes Cichlidae Crenicichla wallaciiendemic   
Characiformes Crenuchidae Crenuchus spilurusnative Sailfin tetra  
Characiformes Characidae Ctenobrycon spilurusnative Silver tetra  
Cypriniformes Cyprinidae Ctenopharyngodon idellaintroduced Grass carp  
Characiformes Curimatidae Curimata cyprinoidesnative   
Characiformes Curimatidae Curimata roseninative   
Characiformes Curimatidae Curimata vittatanative   
Characiformes Curimatidae Curimatella alburnanative   
Characiformes Curimatidae Curimatella immaculatanative   
Characiformes Curimatidae Curimatopsis crypticusnative   
Characiformes Cynodontidae Cynodon gibbusnative   
Characiformes Cynodontidae Cynodon septenariusnative   
Characiformes Characidae Cynopotamus essequibensisnative   
Perciformes Sciaenidae Cynoscion acoupanative Acoupa weakfish Grey snapper 
Perciformes Sciaenidae Cynoscion steindachnerinative Smalltooth weakfish  
Characiformes Curimatidae Cyphocharax festivusnative   
Characiformes Curimatidae Cyphocharax hellerinative   
Characiformes Curimatidae Cyphocharax microcephalusnative   
Characiformes Curimatidae Cyphocharax spilurusnative  Cuticuru 
Siluriformes Cetopsidae Denticetopsis iwokramanative   
Siluriformes Cetopsidae Denticetopsis macilentanative   
Characiformes Lebiasinidae Derhamia hoffmannorumendemic   
Characiformes Characidae Deuterodon potaroensisnative   
Gymnotiformes Sternopygidae Distocyclus conirostrisnative   
Siluriformes Doradidae Doras carinatusnative   
Siluriformes Doradidae Doras micropoeusnative   
Perciformes Eleotridae Dormitator maculatusnative Fat sleeper  
Gymnotiformes Sternopygidae Eigenmannia macropsnative   
Gymnotiformes Sternopygidae Eigenmannia nigranative   
Gymnotiformes Sternopygidae Eigenmannia virescensnative Glass knifefish  
Gymnotiformes Gymnotidae Electrophorus electricusnative Electric eel  
Perciformes Eleotridae Eleotris amblyopsisnative Large-scaled spinycheek sleeper  
Perciformes Eleotridae Eleotris pisonisnative Spinycheek sleeper  
Characiformes Erythrinidae Erythrinus erythrinusnative   
Perciformes Gerreidae Eucinostomus argenteusnative Silver mojarra  
Perciformes Gerreidae Eugerres plumierinative Striped mojarra  
Characiformes Characidae Exodon paradoxusnative Bucktooth tetra  
Siluriformes Loricariidae Farlowella nattererinative   
Siluriformes Loricariidae Farlowella reticulatanative   
Siluriformes Loricariidae Farlowella rugosanative   
Characiformes Gasteropelecidae Gasteropelecus sterniclanative River hatchetfish  
Perciformes Cichlidae Geophagus brachybranchusnative   
Perciformes Cichlidae Geophagus crocatusnative   
Perciformes Gerreidae Gerres cinereusnative Yellow fin mojarra  
Siluriformes Auchenipteridae Glanidium leopardumnative   
Characiformes Acestrorhynchidae Gnathocharax steindachnerinative   
Perciformes Gobiidae Gobioides grahamaenative   
Perciformes Eleotridae Gobiomorus dormitornative Bigmouth sleeper  
Siluriformes Heptapteridae Goeldiella equesnative   
Perciformes Cichlidae Guianacara dacryanative   
Perciformes Cichlidae Guianacara sphenozonanative   
Characiformes Characidae Gymnocorymbus thayerinative False black tetra  
Gymnotiformes Rhamphichthyidae Gymnorhamphichthys rondoninative   
Gymnotiformes Gymnotidae Gymnotus caraponative Banded knifefish  
Siluriformes Doradidae Hassar orestisnative   
Siluriformes Cetopsidae Helogenes marmoratusnative   
Siluriformes Loricariidae Hemiancistrus megacephalusnative   
Siluriformes Loricariidae Hemiancistrus sabajinative   
Characiformes Characidae Hemigrammus analisnative   
Characiformes Characidae Hemigrammus cylindricusnative   
Characiformes Characidae Hemigrammus erythrozonusnative Glowlight tetra  
Characiformes Characidae Hemigrammus iotanative   
Characiformes Characidae Hemigrammus ocellifernative Head-and-taillight tetra  
Characiformes Characidae Hemigrammus orthusnative   
Characiformes Characidae Hemigrammus rodwayinative   
Characiformes Characidae Hemigrammus stictusnative   
Characiformes Characidae Hemigrammus unilineatusnative Featherfin tetra  
Siluriformes Loricariidae Hemiodontichthys acipenserinusnative   
Characiformes Hemiodontidae Hemiodus amazonumnative   
Characiformes Hemiodontidae Hemiodus argenteusnative   
Characiformes Hemiodontidae Hemiodus atranalisnative   
Characiformes Hemiodontidae Hemiodus quadrimaculatusnative Barred hemiodus  
Characiformes Hemiodontidae Hemiodus semitaeniatusnative Halfline hemiodus  
Characiformes Hemiodontidae Hemiodus unimaculatusnative   
Characiformes Hemiodontidae Hemiodus vorderwinklerinative   
Siluriformes Pimelodidae Hemisorubim platyrhynchosnative Porthole shovelnose catfish  
Siluriformes Trichomycteridae Henonemus taxistigmusnative   
Characiformes Acestrorhynchidae Heterocharax macrolepisnative   
Characiformes Erythrinidae Hoplerythrinus unitaeniatusnative Aimara  
Characiformes Erythrinidae Hoplias aimaranative   
Characiformes Erythrinidae Hoplias curupiranative   
Characiformes Erythrinidae Hoplias macrophthalmusnative Giant trahira  
Characiformes Erythrinidae Hoplias malabaricusnative Trahira  
Siluriformes Callichthyidae Hoplosternum littoralenative Atipa  
Characiformes Cynodontidae Hydrolycus armatusnative   
Characiformes Cynodontidae Hydrolycus tatauaianative   
Siluriformes Loricariidae Hypancistrus margaritatusnative   
Characiformes Characidae Hyphessobrycon catableptusnative   
Characiformes Characidae Hyphessobrycon eosnative Dawn tetra  
Characiformes Characidae Hyphessobrycon minimusnative   
Characiformes Characidae Hyphessobrycon minornative   
Characiformes Characidae Hyphessobrycon rosaceusnative Rosy tetra  
Pleuronectiformes Achiridae Hypoclinemus mentalisnative   
Characiformes Anostomidae Hypomasticus megalepisnative   
Siluriformes Pimelodidae Hypophthalmus edentatusnative Highwaterman catfish Highwater 
Gymnotiformes Hypopomidae Hypopomus artedinative   
Siluriformes Loricariidae Hypoptopoma guianensenative   
Beloniformes Hemiramphidae Hyporhamphus unifasciatusnative Common halfbeak  
Siluriformes Loricariidae Hypostomus hemiurusnative   
Siluriformes Loricariidae Hypostomus macushinative   
Siluriformes Loricariidae Hypostomus plecostomusnative Suckermouth catfish Sea hasar 
Siluriformes Loricariidae Hypostomus watwatanative Armored catfish  
Characiformes Iguanodectidae Iguanodectes spilurusnative   
Siluriformes Trichomycteridae Ituglanis graciliornative   
Characiformes Characidae Jupiaba abramoidesnative   
Characiformes Characidae Jupiaba essequibensisnative   
Characiformes Characidae Jupiaba mucronatanative   
Characiformes Characidae Jupiaba pinnatanative   
Characiformes Characidae Jupiaba polylepisnative   
Characiformes Characidae Jupiaba potaroensisnative   
Perciformes Cichlidae Krobia guianensisnative Krobia  
Perciformes Cichlidae Krobia petitellanative   
Cyprinodontiformes Rivulidae Laimosemion agilaenative   
Cyprinodontiformes Rivulidae Laimosemion brevicepsendemic   
Cyprinodontiformes Rivulidae Laimosemion frenatusnative   
Cyprinodontiformes Rivulidae Laimosemion mahdiaensisnative   
Cyprinodontiformes Rivulidae Laimosemion paryaginative Paryag's killifish Paryag's killifish 
Cyprinodontiformes Rivulidae Laimosemion torrenticolanative   
Siluriformes Loricariidae Lasiancistrus schomburgkiinative   
Characiformes Lebiasinidae Lebiasina ardilaiendemic   
Siluriformes Pimelodidae Leiarius arekaimanative   
Siluriformes Pimelodidae Leiarius pictusnative   
Characiformes Anostomidae Leporinus alternusnative   
Characiformes Anostomidae Leporinus arcusnative Lipstick leporinus  
Characiformes Anostomidae Leporinus desmotesnative   
Characiformes Anostomidae Leporinus fridericinative Threespot leporinus  
Characiformes Anostomidae Leporinus grantinative   
Characiformes Anostomidae Leporinus maculatusnative Spotted leporinus  
Characiformes Anostomidae Leporinus nigrotaeniatusnative Halfline leporinus  
Characiformes Anostomidae Leporinus paralternusnative   
Characiformes Anostomidae Leporinus pellegriniinative   
Siluriformes Doradidae Leptodoras hasemaninative   
Siluriformes Doradidae Leptodoras linnellinative   
Siluriformes Heptapteridae Leptorhamdia essequibensisnative   
Siluriformes Loricariidae Limatulichthys griseusnative   
Siluriformes Loricariidae Lithogenes villosusnative   
Siluriformes Loricariidae Lithoxus bovalliiendemic   
Siluriformes Loricariidae Lithoxus lithoidesnative   
Siluriformes Loricariidae Loricaria cataphractanative   
Siluriformes Loricariidae Loricariichthys brunneusnative   
Siluriformes Loricariidae Loricariichthys microdonnative   
Clupeiformes Engraulidae Lycengraulis batesiinative Bates' sabretooth anchovy Anchovy 
Clupeiformes Engraulidae Lycengraulis grossidensnative Atlantic sabretooth anchovy Anchovy 
Perciformes Cichlidae Mazarunia charadricanative   
Perciformes Cichlidae Mazarunia mazaruniinative   
Perciformes Cichlidae Mazarunia palanative   
Siluriformes Callichthyidae Megalechis pictanative Spotted hoplo  
Siluriformes Callichthyidae Megalechis thoracatanative   
Siluriformes Pimelodidae Megalonema amaxanthumnative   
Siluriformes Pimelodidae Megalonema platycephalumnative   
Characiformes Crenuchidae Melanocharacidium blennioidesnative   
Perciformes Cichlidae Mesonauta guyanaenative   
Characiformes Serrasalmidae Metynnis altidorsalisnative   
Characiformes Serrasalmidae Metynnis hypsauchennative Silver dollar  
Siluriformes Pseudopimelodidae Microglanis poecilusnative Dwarf marbled catfish  
Siluriformes Pseudopimelodidae Microglanis secundusnative   
Syngnathiformes Syngnathidae Microphis lineatusnative Opossum pipefish  
Cyprinodontiformes Poeciliidae Micropoecilia pictanative Swamp guppies  
Characiformes Characidae Microschemobrycon melanotusnative   
Characiformes Characidae Moenkhausia browninative   
Characiformes Characidae Moenkhausia chrysargyreanative   
Characiformes Characidae Moenkhausia collettiinative   
Characiformes Characidae Moenkhausia grandisquamisnative   
Characiformes Characidae Moenkhausia lepiduranative   
Characiformes Characidae Moenkhausia oligolepisnative Glass tetra  
Characiformes Characidae Moenkhausia shidelerinative   
Mugiliformes Mugilidae Mugil lizanative Lebranche mullet  
Characiformes Serrasalmidae Mylesinus schomburgkiinative   
Characiformes Serrasalmidae Myleus latusnative   
Characiformes Serrasalmidae Myleus pacunative   
Characiformes Serrasalmidae Myleus setigernative   
Characiformes Serrasalmidae Myloplus asteriasnative   
Characiformes Serrasalmidae Myloplus rhomboidalisnative   
Characiformes Serrasalmidae Myloplus rubripinnisnative Redhook myleus  
Characiformes Serrasalmidae Myloplus torquatusnative   
Siluriformes Heptapteridae Myoglanis potaroensisendemic   
Perciformes Cichlidae Nannacara anomalanative Goldeneye cichlid  
Perciformes Cichlidae Nannacara bimaculataendemic   
Characiformes Lebiasinidae Nannostomus beckfordinative Golden pencilfish  
Characiformes Lebiasinidae Nannostomus digrammusnative Twostripe pencilfish  
Characiformes Lebiasinidae Nannostomus erythrurusnative   
Characiformes Lebiasinidae Nannostomus espeinative Barred pencilfish  
Characiformes Lebiasinidae Nannostomus harrisoninative Blackstripe pencilfish  
Characiformes Lebiasinidae Nannostomus marginatusnative   
Characiformes Lebiasinidae Nannostomus minimusnative Least pencilfish  
Characiformes Lebiasinidae Nannostomus trifasciatusnative Threestripe pencilfish  
Characiformes Lebiasinidae Nannostomus unifasciatusnative Oneline pencilfish  
Siluriformes Loricariidae Neblinichthys brevibracchiumnative   
Siluriformes Loricariidae Neblinichthys echinasusnative   
Siluriformes Trichomycteridae Ochmacanthus flabelliferusnative   
Clupeiformes Pristigasteridae Odontognathus mucronatusnative Guiana longfin herring Herring 
Perciformes Carangidae Oligoplites palometanative Maracaibo leatherjacket  
Salmoniformes Salmonidae Oncorhynchus mykissintroduced Rainbow trout  
Perciformes Cichlidae Oreochromis mossambicusintroduced Mozambique tilapia  
Perciformes Cichlidae Oreochromis niloticusintroduced Nile tilapia  
Osteoglossiformes Osteoglossidae Osteoglossum bicirrhosumnative Arawana  
Siluriformes Doradidae Oxydoras nigernative Ripsaw catfish Cuiu-cuiu 
Perciformes Sciaenidae Pachypops fourcroinative Guyanan croaker  
Perciformes Sciaenidae Pachypops trifilisnative   
Perciformes Sciaenidae Pachyurus schomburgkiinative Amazon croaker  
Siluriformes Loricariidae Panaqolus claustellifernative   
Characiformes Characidae Parapristella aubyneinative   
Characiformes Parodontidae Parodon bifasciatusnative   
Characiformes Parodontidae Parodon guyanensisnative   
Siluriformes Loricariidae Parotocinclus britskiinative   
Siluriformes Loricariidae Parotocinclus collinsaenative   
Siluriformes Loricariidae Paulasquama callisnative   
Siluriformes Loricariidae Peckoltia brauerinative   
Siluriformes Loricariidae Peckoltia cavaticanative   
Clupeiformes Pristigasteridae Pellona castelnaeananative Amazon pellona  
Clupeiformes Pristigasteridae Pellona flavipinnisnative Yellowfin river pellona  
Perciformes Sciaenidae Petilipinnis grunniensnative   
Characiformes Anostomidae Petulanos plicatusnative   
Characiformes Characidae Phenacogaster carterinative   
Characiformes Characidae Phenacogaster megalostictusnative   
Characiformes Characidae Phenacogaster microstictusnative   
Characiformes Characidae Phenacogaster simulatusnative   
Siluriformes Pimelodidae Phractocephalus hemioliopterusnative Redtail catfish  
Siluriformes Doradidae Physopyxis ananasnative   
Siluriformes Doradidae Physopyxis lyranative   
Characiformes Lebiasinidae Piabucina unitaeniatanative   
Characiformes Iguanodectidae Piabucus dentatusnative   
Siluriformes Heptapteridae Pimelodella altipinnisnative   
Siluriformes Heptapteridae Pimelodella cristatanative   
Siluriformes Heptapteridae Pimelodella leptosomanative   
Siluriformes Heptapteridae Pimelodella macturkinative   
Siluriformes Heptapteridae Pimelodella megalopsnative   
Siluriformes Heptapteridae Pimelodella wesseliiendemic   
Siluriformes Pimelodidae Pimelodus blochiinative Bloch's catfish  
Siluriformes Pimelodidae Pimelodus ornatusnative   
Siluriformes Pimelodidae Pinirampus pirinampunative Flatwhiskered catfish  
Perciformes Sciaenidae Plagioscion auratusnative Black curbinata Rockhead basher 
Perciformes Sciaenidae Plagioscion squamosissimusnative South American silver croaker  
Perciformes Sciaenidae Plagioscion surinamensisnative Pacora Koebi 
Siluriformes Doradidae Platydoras costatusnative Raphael catfish  
Siluriformes Doradidae Platydoras hancockiinative Blue-eye catfish  
Siluriformes Aspredinidae Platystacus cotylephorusnative Banded banjo  
Gymnotiformes Apteronotidae Platyurosternarchus crypticusnative   
Cyprinodontiformes Poeciliidae Poecilia paraenative   
Cyprinodontiformes Poeciliidae Poecilia reticulatanative Guppy  
Cyprinodontiformes Poeciliidae Poecilia viviparanative   
Characiformes Crenuchidae Poecilocharax bovaliinative   
Perciformes Polycentridae Polycentrus schomburgkiinative Guyana leaffish  
Perciformes Haemulidae Pomadasys crocronative Burro grunt  
Characiformes Characidae Poptella brevispinanative   
Characiformes Characidae Poptella compressanative   
Gymnotiformes Apteronotidae Porotergus gymnotusnative   
Beloniformes Belonidae Potamorrhaphis guianensisnative   
Myliobatiformes Potamotrygonidae Potamotrygon orbignyinative Smooth back river stingray  
Characiformes Characidae Pristella maxillarisnative X-ray tetra  
Rhinopristiformes Pristidae Pristis microdonnative Largetooth sawfish  
Rhinopristiformes Pristidae Pristis pectinatanative Smalltooth sawfish Sawfish 
Rhinopristiformes Pristidae Pristis perottetinative Large-tooth sawfish Sawfish 
Characiformes Serrasalmidae Pristobrycon aureusnative   
Characiformes Serrasalmidae Pristobrycon calmoninative   
Characiformes Serrasalmidae Pristobrycon striolatusnative   
Characiformes Prochilodontidae Prochilodus rubrotaeniatusnative   
Characiformes Curimatidae Psectrogaster ciliatanative   
Characiformes Curimatidae Psectrogaster essequibensisnative   
Siluriformes Loricariidae Pseudacanthicus leopardusendemic   
Siluriformes Loricariidae Pseudancistrus barbatusnative Bearded catfish  
Siluriformes Loricariidae Pseudancistrus guentherinative   
Siluriformes Loricariidae Pseudancistrus nigrescensendemic   
Characiformes Anostomidae Pseudanos trimaculatusnative Threespot headstander  
Siluriformes Auchenipteridae Pseudauchenipterus nodosusnative Cocosoda catfish  
Siluriformes Pseudopimelodidae Pseudopimelodus bufoniusnative   
Siluriformes Pimelodidae Pseudoplatystoma fasciatumnative Barred sorubim  
Beloniformes Belonidae Pseudotylosurus micropsnative   
Clupeiformes Engraulidae Pterengraulis atherinoidesnative Wingfin anchovy Anchovy 
Siluriformes Doradidae Pterodoras granulosusnative Granulated catfish  
Perciformes Cichlidae Pterophyllum leopoldinative   
Perciformes Cichlidae Pterophyllum scalarenative Freshwater angelfish  
Characiformes Serrasalmidae Pygocentrus nattererinative Red piranha Red pirai 
Characiformes Serrasalmidae Pygopristis denticulatanative Lobetoothed piranha  
Characiformes Lebiasinidae Pyrrhulina filamentosanative   
Characiformes Lebiasinidae Pyrrhulina semifasciatanative   
Siluriformes Heptapteridae Rhamdia foinanative   
Siluriformes Heptapteridae Rhamdia laukidinative   
Siluriformes Heptapteridae Rhamdia muellerinative   
Siluriformes Heptapteridae Rhamdia quelennative South American catfish  
Siluriformes Heptapteridae Rhamdia schomburgkiinative   
Gymnotiformes Rhamphichthyidae Rhamphichthys rostratusnative   
Characiformes Cynodontidae Rhaphiodon vulpinusnative Biara  
Siluriformes Doradidae Rhinodoras armbrusterinative  Dirty thicklip thornycat 
Clupeiformes Clupeidae Rhinosardinia amazonicanative Amazon spinejaw sprat  
Clupeiformes Clupeidae Rhinosardinia bahiensisnative Bahia sprat  
Siluriformes Loricariidae Rineloricaria fallaxnative   
Siluriformes Loricariidae Rineloricaria platyuranative   
Siluriformes Loricariidae Rineloricaria stewartinative   
Characiformes Characidae Roeboides affinisnative   
Characiformes Characidae Roeboides dientonitonative   
Characiformes Acestrorhynchidae Roestes ogilvieinative   
Perciformes Cichlidae Satanoperca leucostictanative   
Siluriformes Ariidae Sciades coumanative Couma sea catfish  
Siluriformes Ariidae Sciades herzbergiinative Pemecou sea catfish Gillbacker 
Characiformes Prochilodontidae Semaprochilodus insignisnative Kissing prochilodus  
Characiformes Serrasalmidae Serrasalmus eigenmanninative   
Characiformes Serrasalmidae Serrasalmus emarginatusnative   
Characiformes Serrasalmidae Serrasalmus rhombeusnative Redeye piranha  
Characiformes Serrasalmidae Serrasalmus stagnatilisnative   
Characiformes Crenuchidae Skiotocharax meizonnative   
Siluriformes Pimelodidae Sorubim elongatusnative Slender shovelnose catfish  
Siluriformes Loricariidae Squaliforma squalinanative   
Gymnotiformes Hypopomidae Steatogenys elegansnative Barred knifefish  
Characiformes Curimatidae Steindachnerina guentherinative   
Gymnotiformes Apteronotidae Sternarchorhynchus freemaninative Freeman’s tube-snouted ghost knifefish  
Gymnotiformes Apteronotidae Sternarchorhynchus oxyrhynchusnative Oxyrhynchus tube-snouted ghost knifefish  
Gymnotiformes Sternopygidae Sternopygus macrurusnative Longtail knifefish  
Beloniformes Belonidae Strongylura marinanative Atlantic needlefish  
Siluriformes Loricariidae Sturisoma monopeltenative   
Perciformes Cichlidae Symphysodon aequifasciatusintroduced Blue discus  
Synbranchiformes Synbranchidae Synbranchus marmoratusnative Marbled swamp eel  
Siluriformes Auchenipteridae Tatia carolaenative   
Siluriformes Auchenipteridae Tatia intermedianative   
Siluriformes Auchenipteridae Tatia meesinative   
Siluriformes Doradidae Tenellus leporhinusnative   
Siluriformes Doradidae Tenellus trimaculatusnative   
Characiformes Characidae Tetragonopterus chalceusnative   
Cyprinodontiformes Poeciliidae Tomeurus gracilisnative   
Siluriformes Auchenipteridae Trachelyichthys decaradiatusnative   
Siluriformes Auchenipteridae Trachycorystes trachycorystesnative Black catfish  
Siluriformes Doradidae Trachydoras brevisnative   
Siluriformes Doradidae Trachydoras microstomusnative   
Siluriformes Trichomycteridae Trichomycterus conradinative   
Siluriformes Trichomycteridae Trichomycterus guianensenative   
Characiformes Triportheidae Triportheus brachipomusnative   
Characiformes Triportheidae Triportheus elongatusnative Elongate hatchetfish  
Characiformes Triportheidae Triportheus rotundatusnative   
Siluriformes Auchenipteridae Tympanopleura piperatanative   
Siluriformes Trichomycteridae Vandellia beccariinative   
Siluriformes Trichomycteridae Vandellia sanguineanative   
Siluriformes Pimelodidae Zungaro zungaronative Gilded catfish  
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