Mongabay.com is considered a leading source of information on tropical forests by some of the world's top ecologists and conservationists. ENDANGERED SPECIES CHARTS:

The world's most endangered snakes


Chart: conservation status of the world's snakes
Click image to enlarge



The IUCN Red List of Threatened Species evaluates the conservation status of plant and animal species. The list is based on scientific assessment of an organism's status by experts.

Conservation status of the world's snakes


Species comprising the chart above include:

FamilyScientific nameCommon name(s)Red List statusPopulation trend
BOLYERIDAEBolyeria multocarinataRound Island Burrowing BoaEX
DIPSADIDAEBorikenophis sanctaecrucisSaint Croix RacerEX
TYPHLOPIDAETyphlops carieiEX
ELAPIDAEAipysurus apraefrontalisSahul Reef Snake, Short-nosed Sea SnakeCRdecreasing
ELAPIDAEAipysurus foliosquamaLeaf-scaled Sea SnakeCRdecreasing
DIPSADIDAEAlsophis antiguaeAntiguan RacerCRincreasing
VIPERIDAEBothropoides alcatrazAlcatrazes LanceheadCRstable
VIPERIDAEBothropoides insularisGolden Lancehead, Queimada Island BothropsCRstable
CALAMARIIDAECalamaria ingeriCRunknown
CALAMARIIDAECalamaria prakkeiPrakke's Reed SnakeCR
COLUBRIDAEChironius vincentiSt Vincent BlacksnakeCR
PSEUDOXYRHOPHIIDAECompsophis vinckeiCRdecreasing
VIPERIDAECrotalus catalinensisSanta Catalina Island RattlesnakeCRdecreasing
VIPERIDAECrotalus unicolorAruba Island RattlesnakeCR
COLUBRIDAEGongylosoma mukutensePulau Tioman Ground SnakeCR
DIPSADIDAEHypsirhynchus aterBlack RacerCR
COLUBRIDAELampropeltis herreraeCRdecreasing
DIPSADIDAELiophis cursorLacépède's Ground SnakeCR
COLUBRIDAELycodon chrysopraterosRoss' Wolf SnakeCRdecreasing
COLUBRIDAEMasticophis anthonyiCRunknown
ELAPIDAEMicrurus ruatanusRoatan Coral SnakeCRunknown
VIPERIDAEMontivipera wagneriWagner's ViperCRdecreasing
COLUBRIDAEOligodon booliatiBoo-Liat's Kukri SnakeCRunknown
NATRICIDAEOpisthotropis kikuzatoiKikuzato's Brook Snake, Kikuzatos Stream SnakeCR
PROSYMNIDAEProsymna ornatissimaOrnate Shovel-snoutCRunknown
PSEUDOXYRHOPHIIDAEPseudoxyrhopus ankafinaensisCRunknown
TYPHLOPIDAETyphlops lazelliCRunknown
VIPERIDAEVipera anatolicaCRdecreasing
VIPERIDAEVipera darevskiiDarevsky's ViperCRdecreasing
VIPERIDAEVipera orloviOrlov's ViperCRdecreasing
TYPHLOPIDAEXenotyphlops grandidieriCRunknown
DIPSADIDAEAdelphicos daryiDary's Burrowing SnakeEN
TYPHLOPIDAEAfrotyphlops gierraiGierra's Blind Snake, Usambara Spotted Worm SnakeENunknown
ELAPIDAEAipysurus fuscusDusky Sea Snake, Timor Reef SnakeENdecreasing
PSEUDOXYRHOPHIIDAEAlluaudina mocquardiENunknown
DIPSADIDAEAlsophis rijgersmaeiAnguila Racer, Leeward Island RacerEN
DIPSADIDAEAlsophis rufiventrisOrange-bellied Racer, Red-bellied Racer, Saba RacerEN
DIPSADIDAEAlsophis sanctonumTerre-De-Haut RacerENunknown
NATRICIDAEAmphiesma metusiaWa Shan KeelbackENdecreasing
PYTHONIDAEAspidites ramsayiRamsay's Python, WomaEN
COLUBRIDAEBoiga bourretiBourret's Cat SnakeENunknown
COLUBRIDAEBoiga saengsomiBanded Cat Snake, Banded Green Cat SnakeENunknown
VIPERIDAEBothrops lojanusLojan LanceheadENunknown
CALAMARIIDAECalamaria yunnanensisYunnan Reed SnakeENunknown
DIPSADIDAECalamodontophis ronaldoiENunknown
BOLYERIDAECasarea dussumieriRound Island Boa, Round Island Ground Boa, Round Island Keel-scaled BoaEN
HOMALOPSIDAECerberus microlepisENdecreasing
DIPSADIDAEChersodromus rubriventrisENdecreasing
BOIDAECorallus cropaniiCropan's BoaENunknown
VIPERIDAECrotalus pusillusENunknown
VIPERIDAECryptelytrops kanburiensisKanburi Pit ViperENunknown
ELAPIDAEElapsoidea chelazziiSomali Garter Snake, Southern Somali Garter SnakeENunknown
ELAPIDAEElapsoidea nigraBlack Garter Snake, Usambara Garter SnakeENunknown
HOMALOPSIDAEEnhydris vorisiENunknown
BOIDAEEpicrates monensisMona Island BoaENunknown
COLUBRIDAEEuprepiophis perlaceaPearl-banded Rat Snake, Sichuan Rat SnakeENdecreasing
COLUBRIDAEFicimia hardyiENdecreasing
PSEUDOXYRHOPHIIDAEHeteroliodon fohyENdecreasing
COLUBRIDAEHierophis cypriensisCyprus Whip Snake, Zypern-schlanknatterENdecreasing
NATRICIDAEHologerrhum dermaliENdecreasing
LAMPROPHIIDAELamprophis geometricusSeychelles House SnakeENdecreasing
PSEUDOXYRHOPHIIDAELiophidium mayottensisPeters' Bright SnakeENunknown
DIPSADIDAELiophis ornatusOrnate Ground Snake, St Lucia RacerEN
DIPSADIDAELiophis perfuscusBarbados RacerEN
DIPSADIDAELiophis williamsiWilliams' Ground SnakeENunknown
PSEUDOXYRHOPHIIDAELycodryas guentheriENdecreasing
PSEUDOXYRHOPHIIDAELycodryas inopinaeENunknown
NATRICIDAELycognathophis seychellensisSeychelles Wolf SnakeENdecreasing
VIPERIDAEMacrovipera schweizeriCyclades Blunt-nosed Viper, Milos ViperENstable
VIPERIDAEMixcoatlus barbouriBarbour's Montane Pit ViperENdecreasing
VIPERIDAEMixcoatlus melanurusENdecreasing
VIPERIDAEMontivipera albizonaMountain ViperENdecreasing
VIPERIDAEMontivipera bornmuelleriLebanon ViperENdecreasing
VIPERIDAEMontivipera latifiiLatifi's ViperENdecreasing
COLUBRIDAEOligodon meyerinkiiSulu Short-headed SnakeENdecreasing
NATRICIDAEOpisthotropis alcalaiGary's Mountain KeelbackENdecreasing
PSEUDOXYRHOPHIIDAEPhisalixella variabilisENdecreasing
COLUBRIDAEPituophis ruthveniLouisiana Pinesnake, Louisiana Pine SnakeENdecreasing
VIPERIDAEPopeia bunianaPulau Tioman Pit ViperENunknown
VIPERIDAEProtobothrops mangshanensisMang Mountain Pit Viper, Mangshan Pit Viper, Mt. Mang Pit ViperENdecreasing
VIPERIDAEProtobothrops sieversorumThree Horned-scaled PitviperENunknown
VIPERIDAEProtobothrops trungkhanhensisTrungkhanh Pit ViperENunknown
CALAMARIIDAEPseudorabdion montanumMountain Burrowing SnakeENdecreasing
PSEUDOXYRHOPHIIDAEPseudoxyrhopus kelyENdecreasing
TYPHLOPIDAERamphotyphlops suluensisENdecreasing
DIPSADIDAERhadinaea marcellaeMarcella's Graceful Brown SnakeENdecreasing
DIPSADIDAERhadinaea montanaNuevo Leon Graceful Brown SnakeENdecreasing
COLUBRIDAETantilla flavilineataYellow-lined Centipede SnakeENstable
COLUBRIDAETantilla ooliticaRim Rock Crowned SnakeENdecreasing
COLUBRIDAETantilla shawiPotosí Centipede SnakeENunknown
COLUBRIDAETelescopus hoogstraaliENdecreasing
NATRICIDAEThamnophis melanogasterENdecreasing
NATRICIDAEThamnophis mendaxENdecreasing
PSEUDOXYRHOPHIIDAEThamnosophis martaeENdecreasing
TYPHLOPIDAETyphlops capitulatusHaitian Pale-Lipped BlindsnakeENunknown
TYPHLOPIDAETyphlops hectusTiburon Peninsula BlindsnakeENunknown
TYPHLOPIDAETyphlops monensisMona Blind SnakeEN
TYPHLOPIDAETyphlops schmutziSchmutz's Worm SnakeENunknown
TYPHLOPIDAETyphlops tasymicrisGrenada Bank BlindsnakeENunknown
VIPERIDAEVipera kaznakoviCaucasian (Caucasus) Viper, Caucasian ViperENdecreasing
VIPERIDAEVipera magnificaMagnificent ViperENdecreasing
VIPERIDAEVipera ponticaBlack Sea ViperENunknown
VIPERIDAEViridovipera truongsonensisTruong Son Pit ViperENunknown
XENOSAURIDAEXenosaurus newmanorumENdecreasing
XENOSAURIDAEXenosaurus platycepsENdecreasing
XENODERMATIDAEAchalinus werneriAmami Takachiho SnakeVU
NATRICIDAEAdelophis copeiVUdecreasing
NATRICIDAEAmphiesma miyajimaeMaki's KeelbackVUdecreasing
VIPERIDAEAtheris barbouriBarbour's Short-headed Viper, Uzungwe Mountain Bush ViperVUunknown
VIPERIDAEAtheris ceratophoraUsambara Eyelash ViperVUunknown
VIPERIDAEAtheris hirsutaTai Hairy Bush ViperVUunknown
DIPSADIDAEAtractus modestusModest Ground SnakeVUunknown
DIPSADIDAEAtractus niceforiNorthern Ground SnakeVUunknown
DIPSADIDAEAtractus rouleiRoule's Ground SnakeVUunknown
ELAPIDAEAustrelaps labialisPygmy CopperheadVU
VIPERIDAEBitis inornataPlain Mountain AdderVU
VIPERIDAEBitis schneideriNamaqua Dwarf AdderVU
VIPERIDAEBothriechis auriferYellow-blotched Palm Pit ViperVUdecreasing
VIPERIDAEBothriechis rowleyiRowley's Palm Pit ViperVUdecreasing
VIPERIDAEBothrops pirajaiPiraja's LanceheadVUdecreasing
PSEUDOXYRHOPHIIDAEBrygophis coulangesiVUunknown
ELAPIDAEBungarus andamanensisAndaman's Krait, South Andaman KraitVUunknown
ELAPIDAEBungarus slowinskiiRed River KraitVUunknown
DIPSADIDAECalamodontophis paucidensTropical Forest SnakeVUdecreasing
PSEUDOXYRHOPHIIDAECompsophis zenyVUdecreasing
DIPSADIDAEConiophanes dromiciformisPeters' Running SnakeVUunknown
VIPERIDAECrotalus stejnegeriVUdecreasing
VIPERIDAECryptelytrops honsonensisHon Son Pit ViperVUstable
VIPERIDAECryptelytrops rubeusRuby-eyed Green PitviperVUdecreasing
ELAPIDAEDenisonia maculataOrnamental SnakeVU
COLUBRIDAEDryocalamus philippinusVUdecreasing
COLUBRIDAEDryophiops philippinaPhilippine DryophiopsVUdecreasing
ELAPIDAEEchiopsis atricepsLake Cronin SnakeVU
HOMALOPSIDAEEnhydris longicaudaLonghead Water Snake, Longtailed Mud Snake, Tonlé Sap Water SnakeVUdecreasing
BOIDAEEpicrates subflavusJamaican Boa, Yellow SnakeVU
ELAPIDAEFurina dunmalliDunmall's SnakeVUdecreasing
DIPSADIDAEGeophis juliaiVUdecreasing
VIPERIDAEGloydius shedaoensisShedao Island Pit ViperVUunknown
DIPSADIDAEHeterodon simusSouthern Hog-nosed Snake, Southern Hognose SnakeVUdecreasing
ELAPIDAEHoplocephalus bungaroidesBroad-headed SnakeVU
ELAPIDAEHydrophis semperiLake Taal SnakeVUdecreasing
ELAPIDAELaticauda crockeriCrocker's Sea Snake, Rennell Island Sea KraitVUunknown
ELAPIDAELaticauda schistorhynchusFlat-tail Sea SnakeVUunknown
COLUBRIDAELeptophis modestusCloud Forest Parrot SnakeVUdecreasing
PSEUDOXYRHOPHIIDAELiophidium therezieniVUdecreasing
DIPSADIDAELiophis atraventerVUdecreasing
PSEUDOXYRHOPHIIDAELiopholidophis grandidieriGrandidier's Water SnakeVUunknown
COLUBRIDAELycodon paucifasciatusRendahl's Wolf SnakeVUunknown
PSEUDOXYRHOPHIIDAELycodryas citrinusVUunknown
PSEUDOXYRHOPHIIDAELycodryas inornatusVUdecreasing
LAMPROPHIIDAELycophidion nanusDwarf Wolf SnakeVUunknown
ELAPIDAEMicrurus ephippiferVUdecreasing
VIPERIDAEMontivipera albicornutaVUdecreasing
ELAPIDAENaja mandalayensisMandalay CobraVUdecreasing
ELAPIDAENaja siamensisBlack And White Spitting Cobra, Indo-chinese Spitting Cobra, Siamese CobraVUdecreasing
NATRICIDAENatrix megalocephalaColkhis Water Snake, Large-headed Water SnakeVUdecreasing
ELAPIDAEOgmodon vitianusFiji Snake, Viti BoloVU
COLUBRIDAEOligodon juglandiferWalnut Kukri SnakeVUunknown
COLUBRIDAEOligodon lacroixiLacroix Kukri SnakeVUunknown
COLUBRIDAEOligodon modestumSpotted-bellied Short-headed SnakeVUdecreasing
COLUBRIDAEOligodon pulcherrimusVUunknown
ELAPIDAEOphiophagus hannahHamadryad, King CobraVUdecreasing
VIPERIDAEOphryacus undulatusVUdecreasing
COLUBRIDAEOrthriophis moellendorfiMoellendorff's Trinket SnakeVUdecreasing
PSEUDOXYRHOPHIIDAEPararhadinaea melanogasterVUdecreasing
DIPSADIDAEPhilodryas lividaVUunknown
VIPERIDAEPopeia nebularisCameron Highlands Pit ViperVUunknown
CALAMARIIDAEPseudorabdion mcnamaraeMcnamara's Burrowing SnakeVUdecreasing
CALAMARIIDAEPseudorabdion talonuranVUunknown
PSEUDOXYRHOPHIIDAEPseudoxyrhopus oblectatorVUdecreasing
PSEUDOXYRHOPHIIDAEPseudoxyrhopus sokosokoVUunknown
PYTHONIDAEPython bivittatusBurmese PythonVUdecreasing
PYTHONIDAEPython kyaiktiyoVUunknown
TYPHLOPIDAERamphotyphlops exocoetiChristmas Island Blind SnakeVU
DIPSADIDAERhadinaea fulvivittisRibbon Graceful Brown SnakeVUdecreasing
NATRICIDAEStoreria hidalgoensisVUdecreasing
DIPSADIDAETantalophis discolorVUdecreasing
COLUBRIDAETantilla boipirangaVUunknown
COLUBRIDAETetralepis fruhstorferiFruhstorfer's Mountain SnakeVU
NATRICIDAEThamnophis gigasGiant Gartersnake, Giant Garter SnakeVUdecreasing
NATRICIDAEThamnophis scaligerVUdecreasing
PSEUDOXYRHOPHIIDAEThamnosophis stumpffiYellow-striped Water SnakeVUdecreasing
DIPSADIDAEThermophis baileyiVU
NATRICIDAETropidonophis negrosensisVUdecreasing
TYPHLOPIDAETyphlops manniMann's Worm SnakeVUunknown
VIPERIDAEVipera dinnikiCaucasus Subalpine Viper, Dinnik's ViperVUdecreasing
VIPERIDAEVipera ebneriIranian Mountain Steppe ViperVUdecreasing
VIPERIDAEVipera eriwanensisAlburzi Viper, Armenian Steppe ViperVUdecreasing
VIPERIDAEVipera latasteiLataste's ViperVUdecreasing
VIPERIDAEVipera ursiniiMeadow Viper, Orsini's Viper, Orsinis ViperVUdecreasing
XENOSAURIDAEXenosaurus grandisVUdecreasing
VIPERIDAEAgkistrodon bilineatusNTdecreasing
NATRICIDAEAmphiesma taronensisTaron KeelbackNTunknown
AMPHISBAENIDAEAmphisbaena hyporissorPuerto Rican Dusky Amphisbaena NTunknown
AMPHISBAENIDAEAmphisbaena schmidtiPuerto Rican Dusky Amphisbaena, Tiburon Stout Anole NTdecreasing
DIPSADIDAEApostolepis multicinctaNTunknown
NATRICIDAEBalanophis ceylonensisBlossom Krait, Sri Lankan KeelbackNTunknown
NATRICIDAEClonophis kirtlandiiKirtland's SnakeNTdecreasing
PSEUDOXYRHOPHIIDAECompsophis albiventrisNTunknown
PSEUDOXYRHOPHIIDAECompsophis fatsibeNTunknown
COLUBRIDAEConopsis amphistichaNTstable
VIPERIDAEDaboia desertiDesert ViperNTdecreasing
VIPERIDAEDaboia mauritanicaMoorish ViperNTdecreasing
ELAPIDAEEchiopsis curtaBardickNTdecreasing
COLUBRIDAEElaphe quatuorlineataFour-lined SnakeNTdecreasing
COLUBRIDAEHemerophis socotraeSocotran RacerNTunknown
PSEUDOXYRHOPHIIDAEHeteroliodon lavaNTdecreasing
ELAPIDAEHoplocephalus stephensiiStephen's Banded SnakeNTdecreasing
ELAPIDAEHydrophis pacificusLarge-headed Seasnake, Pacific Sea SnakeNTdecreasing
COLUBRIDAELampropeltis ruthveniNTdecreasing
ELAPIDAELaticauda frontalisYellow-lipped Sea SnakeNTunknown
ELAPIDAELaticauda guineaiNTunknown
ELAPIDAELaticauda semifasciataChinese Sea SnakeNTunknown
PSEUDOXYRHOPHIIDAELiophidium pattoniNTdecreasing
PSEUDOXYRHOPHIIDAELiopholidophis dimorphusNTstable
PSEUDOXYRHOPHIIDAELycodryas carletiNTunknown
PSEUDOXYRHOPHIIDAELycodryas sanctijohannisSt. Johann's Tree SnakeNTunknown
COLUBRIDAEMacroprotodon brevisFalse Smooth SnakeNTdecreasing
VIPERIDAEMontivipera raddeiArmenian Viper, Armenian Viper, Radde's ( Rock) ViperNTdecreasing
ELAPIDAENaja philippinensisPhilippine Common CobraNTdecreasing
NATRICIDAENerodia harteriBrazos River Watersnake, Brazos Watersnake, Brazos Water SnakeNTstable
NATRICIDAENerodia paucimaculataConcho Watersnake, Concho Water SnakeNTstable
DIPSADIDAENinia espinaliEspinal's Coffee SnakeNTunknown
COLUBRIDAEOligodon ancorusNorthern Short-headed SnakeNTdecreasing
COLUBRIDAEOligodon lungshenensisNTunknown
COLUBRIDAEOligodon perkinsiPerkin's Short-headed SnakeNTdecreasing
NATRICIDAEOpisthotropis andersoniiAnderson's Mountain Keelback, Anderson's Stream SnakeNTdecreasing
NATRICIDAEOpisthotropis daovantieniDao Van Tien's Stream SnakeNTunknown
NATRICIDAEOpisthotropis guangxiensisGuanxi Mountain KeelbackNTunknown
COLUBRIDAEPantherophis gloydiEastern Foxsnake, Eastern Fox SnakeNTdecreasing
VIPERIDAEParias malcolmiKinabalu Green Pit ViperNTunknown
VIPERIDAEProtobothrops cornutusHorned Pit ViperNTunknown
PSEUDOXYRHOPHIIDAEPseudoxyrhopus ambreensisNTunknown
PSEUDOXYRHOPHIIDAEPseudoxyrhopus analabeNTdecreasing
PSEUDOXYRHOPHIIDAEPseudoxyrhopus imerinaePlateau Brook SnakeNTunknown
UROPELTIDAERhinophis drummondhayiDrummond-hay's Earth SnakeNTunknown
ELAPIDAESinomicrurus japonicusJapanese Coral SnakeNTunknown
COLUBRIDAESonora aemulaNTstable
COLUBRIDAEStegonotus muelleriMuller's Wolf SnakeNTdecreasing
COLUBRIDAEStilosoma extenuatumShort-tailed SnakeNTdecreasing
PSEUDOXYRHOPHIIDAEThamnosophis mavotendaNTunknown
VIPERIDAETrimeresurus brongersmaiBrongersma's Pit ViperNTunknown
DIPSADIDAETrimetopon sleviniSlevin's Tropical Ground SnakeNTunknown
TYPHLOPIDAETyphlops biminiensisNTunknown
TYPHLOPIDAETyphlops syntherusBarahona Peninsula BlindsnakeNTunknown
VIPERIDAEVipera baraniNTdecreasing
VIPERIDAEVipera lotieviLotiev's ViperNTdecreasing
VIPERIDAEVipera monticolaAtlas Dwarf ViperNTdecreasing
VIPERIDAEVipera transcaucasianaTranscaucasian Long-nosed ViperNTdecreasing


This table and chart was last updated on August 8, 2012, based on data downloaded from the IUCN Red List site. For a species profile, click on its scientific name.





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