Amphibians.org

Search for Lost Frogs

The Search for Lost Frogs, launched in August 2010 by Conservation International (CI) and the IUCN SSC Amphibian Specialist Group (ASG), with support from Global Wildlife Conservation (GWC), sought to document the survival status and whereabouts of threatened amphibian species not seen in over a decade. Over five months, CI supported expeditions by 126 researchers in 21 countries across five continents.

The Search for Lost Frogs is an unprecedented global search for species believed “lost” to science. The campaign was intended to run for several months, but garnered such attention that it has inspired the development of a dynamic portal devoted to the ongoing search for “lost” frogs.

The Top 10 Most Wanted

Phase 1 of the Search for Lost Frogs ended in 2011 but the campaign is not over with individuals and groups launching expeditions to find these species on an increasingly regular basis. We are eager to hear from anyone who has information on any of the species above or is planning a search for the other 250 lost frogs.

Search status
Order
Family
Scientific name
Common name
Range
Date last seen
Red List
Found again
FOUNDANURAALYTIDAEDiscoglossus nigriventerHula painted FrogIsrael1955EX2011
LostANURAHEMIPHRACTIDAEGastrotheca christianiChristian's marsupial frogArgentina1996EN
LostANURAAROMOBATIDAEMannophryne neblinaSapito Acollarado De Rancho GrandeVenezuela1956CR
LostANURAAROMOBATIDAEAromobates nocturnusVenezuelan Skunk frogVenezuela1990sCR
LostANURAAROMOBATIDAEProstherapis dunniSapito Ninera De DunnVenezuela?CR
FOUNDANURAARTHROLEPTIDAECardioglossa cyaneospilaBurundi; Congo, The Democratic Republic of the; Rwanda?DD2011
LostANURAARTHROLEPTIDAEArthroleptis troglodytesCave squeakerZimbabwe1962CR
FOUNDANURAARTHROLEPTIDAEArthroleptis pyrrhoscelisDRC1952NT2011
LostANURABUFONIDAEAtelopus eusebiodiaziPeru1997CR
LostANURABUFONIDAEAtelopus guanujoPuca SapoEcuador1988CR
LostANURABUFONIDAEAtelopus farciForest Stubfoot ToadColombia1992CR
LostANURABUFONIDAEAtelopus famelicusColombia1993CR
LostANURABUFONIDAEAtelopus sernaiColombia2000CR
LostANURABUFONIDAEAtelopus planispinaEcuador?CR
FOUNDANURABUFONIDAEAdenomus kandianusSri Lanka1872EX2009
LostANURABUFONIDAEIncilius fastidiosusCosta Rica; Panama?CR
LostANURABUFONIDAEAtelopus galactogasterColombia1990sCR
LostANURABUFONIDAEAtelopus pinangoiVenezuela1997CR
LostANURABUFONIDAEAtelopus senexCosta Rica1980'sCR
LostANURABUFONIDAEAtelopus sonsonensisColombia1996CR
LostANURABUFONIDAEAnsonia siamensisThailand1998VU
LostANURABUFONIDAEAtelopus peruensisPeru?CR
LostANURABUFONIDAELaurentophryne parkeriDemocratic Republic of Congo1950DD
LostANURABUFONIDAEAtelopus sorianoiScarlet FrogVenezuela1990CR
LostANURABUFONIDAEAtelopus pachydermusColombia; Ecuador; Peru1995CR
LostANURABUFONIDAEAtelopus nanayEcuador1989CR
FOUNDANURABUFONIDAEIncilius holdridgeiHoldridge's ToadCosta Rica1986EX2010
LostANURABUFONIDAENectophrynoides asperginisKihansi Spray ToadTanzania2004EW
LostANURABUFONIDAEAtelopus muiscaColombia1996CR
LostANURABUFONIDAEPeltophryne fluviaticaDominican Caribbean (Hispaniolan Crestless) ToadDominican Republic1972CR
LostANURABUFONIDAEGhatophryne rubiginaIndia1981VU
LostANURABUFONIDAEDuttaphrynus peninsularisIndia1920NE
LostANURABUFONIDAEAtelopus petersiPeter's Stubfoot ToadEcuador1996CR
LostANURABUFONIDAEWerneria iboundjiGabon2001CR
LostANURABUFONIDAEIncilius periglenesGolden toadCosta Rica1989EX
LostANURABUFONIDAEAtelopus longibrachiusColombia1990EN
LostANURABUFONIDAERhinella rostrataColombia1914CR
LostANURABUFONIDAEAtelopus lozanoiColombia1993CR
LostANURABUFONIDAEAtelopus longirostrisEcuador1989EX
LostANURABUFONIDAEAtelopus halihelosMorona-Santiago Stubfoot ToadEcuador1991CR
LostANURABUFONIDAEAndinophryne colomaiEcuador1984CR
LostANURABUFONIDAEAtelopus minutulusColombian Stubfoot ToadColombia1985CR
LostANURABUFONIDAEAndinophryne olallaiTandayapa Andean ToadEcuador1970DD
LostANURABUFONIDAEAtelopus ignescensjambato toadEcuador1988EX
LostANURABUFONIDAEAtelopus chiriquiensisPanama/Costa Rica1990sCR
LostANURABUFONIDAEAtelopus dimorphusPeru1980EN
LostANURABUFONIDAEAtelopus lynchiEcuador1984CR
FOUNDANURABUFONIDAEVandijkophrynus amatolicusAmatola toadSouth Africa1998CR2011
LostANURABUFONIDAEAtelopus chrysocorallusVenezuela1988CR
LostANURABUFONIDAEAtelopus mindoensisMindo Stubfoot ToadEcuador1989CR
LostANURABUFONIDAEAtelopus oxyrhynchusRed-nosed stubfoot toadVenezuela1994CR
LostANURABUFONIDAEAmietophrynus danielaeCôte d'Ivoire1977?DD
FOUNDANURABUFONIDAEAnsonia latidiscaIndonesia, Malaysia1966EN2011
LostANURABUFONIDAEAtelopus onoreiOnore's Harlequin ToadEcuador1990CR
LostANURABUFONIDAEAtelopus vogliVenezuela1957EX
LostANURABUFONIDAEAmietophrynus perretiNigeria1970VU
LostANURABUFONIDAEAtelopus carbonerensisyellow frog of La CarboneraVenezuela1995CR
FOUNDANURABUFONIDAEAtelopus baliosRio Pescado Stubfoot ToadEcuador1995CR2010
LostANURABUFONIDAEAtelopus carautaColombia1973CR
LostANURABUFONIDAEAtelopus chocoensisColombia1998CR
LostANURABUFONIDAEAtelopus mandinguesColombia1992CR
FOUNDANURACENTROLENIDAECentrolene helodermaColombia; Ecuador1996CR2012
LostANURACENTROLENIDAECochranella geijskesiSuriname1966DD
LostANURACERATOPHRYIDAETelmatobius cirrhacelisEcuador1981CR
LostANURACERATOPHRYIDAETelmatobius nigerkaylaEcuador1994CR
LostANURACERATOPHRYIDAETelmatobius vellardiEcuador1987CR
FOUNDANURACERATOPHRYIDAETelmatobius brevipesPeru1998EN2004-2009
LostANURACRAUGASTORIDAECraugastor ancianoHonduras?CR
LostANURACRAUGASTORIDAECraugastor cruziHonduras1988CR
LostANURACRAUGASTORIDAECraugastor escocesCosta Rica1986EX
LostANURACRAUGASTORIDAECraugastor olanchanoHonduras?CR
LostANURACRAUGASTORIDAECraugastor emleniHonduras?CR
FOUNDANURACRAUGASTORIDAECraugastor fleischmanniFleischmann's Robber FrogCosta Rica1986CR2010
LostANURACRAUGASTORIDAECraugastor omoaensisHonduras1996CR
LostANURACRAUGASTORIDAECraugastor chrysozetetesHonduras1994?EX
LostANURACRAUGASTORIDAECraugastor andiCosta Rica1980'sCR
LostANURACRAUGASTORIDAECraugastor stadelmaniHonduras1993CR
LostANURACRAUGASTORIDAECraugastor fecundusHonduras?CR
LostANURACRAUGASTORIDAECraugastor trachydermusGuatemala?CR
LostANURACRAUGASTORIDAECraugastor polymniaeRana-ladrona De Sierra De JuárezMexico1983CR
LostANURACRAUGASTORIDAECraugastor angelicusAngel Robber FrogCosta Rica1994CR
LostANURACYCLORAMPHIDAECycloramphus diringshofeniSao Bent Button FrogBrazil1950sDD
LostANURACYCLORAMPHIDAERhinoderma rufumChile Darwin's frogChile1978CR
LostANURACYCLORAMPHIDAECycloramphus valaeGruta Button FrogBrazil1982DD
LostANURADENDROBATIDAERanitomeya abditaCollins' Poison FrogEcuador1976?CR
LostANURADENDROBATIDAEHyloxalus ruiziColombia?CR
LostANURADENDROBATIDAEColostethus jacobuspetersiQuito Rocket FrogEcuador1960sCR
LostANURADENDROBATIDAEHyloxalus edwardsiColombia1996CR
LostANURADICROGLOSSIDAENannophrys guentheriSri Lanka1882EX
LostANURADICROGLOSSIDAEEuphlyctis ghoshiIndia1975DD
LostANURADICROGLOSSIDAEFejervarya murthiiIndia1979CR
LostANURADICROGLOSSIDAEFejervarya parambikulamanaIndia1937DD
LostANURADICROGLOSSIDAEFejervarya frithiBangladesh1868DD
LostANURADICROGLOSSIDAEFejervarya bramaIndia1834DD
LostANURADICROGLOSSIDAEFejervarya assimilisIndia1852DD
LostANURADICROGLOSSIDAEFejervarya sauricepsIndia1937DD
LostANURADICROGLOSSIDAELimnonectes khasianusIndia1871DD
LostANURADICROGLOSSIDAEIngerana charlesdarwiniIndia1997CR
LostANURAELEUTHERODACTYLIDAEEleutherodactylus orcuttiJamaica1980'sCR
LostANURAELEUTHERODACTYLIDAEEleutherodactylus karlschmidtiweb-footed coquiPuerto Rico1976CR
LostANURAELEUTHERODACTYLIDAEEleutherodactylus semipalmatusHaiti1985CR
LostANURAELEUTHERODACTYLIDAEEleutherodactylus schmidtiDominican Republic; Haiti1980'sCR
LostANURAELEUTHERODACTYLIDAEEleutherodactylus jasperiGolden coquiPuerto Rico1981CR
LostANURAELEUTHERODACTYLIDAEEleutherodactylus eneidaeMottled coquiPuerto Rico1990CR
LostANURAELEUTHERODACTYLIDAEEleutherodactylus glanduliferoidesHaiti1985CR
LostCAECILIIDAEGYMNOPHIONAIdiocranium russeliCameroon1930DD
LostANURAHEMIPHRACTIDAEGastrotheca lauzuricaeBolivia1989CR
LostANURAHEMIPHRACTIDAECryptobatrachus niceforiColombia1970CR
LostANURAHYLIDAEPlectrohyla cyanommaMexico1980CR
LostANURAHYLIDAEPlectrohyla cembraMexico1993CR
LostANURAHYLIDAEHyloscirtus lynchiColombia?EN
LostANURAHYLIDAEPlectrohyla thorectesRana-de Árbol MoteadaMexico1984CR
LostANURAHYLIDAEHyla heinzsteinitziIsrael; Palestinian Territory, Occupied?CR
LostANURAHYLIDAEPlectrohyla celataMexico1984CR
LostANURAHYLIDAEPlectrohyla siopelaMexico1990'sCR
LostANURAHYLIDAEPlectrohyla ephemeraMexico?CR
LostANURAHYLIDAELitoria piperataPeppered tree frogAustralia1973CR
FOUNDANURAHYLIDAEIsthmohyla ticaCosta Rica; Panama1997CR2010
FOUNDANURAHYLIDAELitoria castaneaYellow-spotted Tree FrogAustralia1980CR2008
FOUNDANURAHYLIDAEIsthmohyla debilisCosta Rica; Panama1998CR2008
LostANURAHYLIDAEHypsiboas cymbalumCampo Grande TreefrogBrazil1960sCR
LostANURAHYLIDAEHyloscirtus denticulentusCharta TreefrogColombia1992EN
FOUNDANURAHYLIDAEIsthmohyla graceaeCosta Rica; Panama?CR2010
LostANURAHYLIDAEHypsiboas fuenteiSuriname1970'sDD
LostANURAHYLIDAECharadrahyla altipotensMexico1960'sCR
LostANURAHYLIDAEPlectrohyla mykterRana-de Arbol Hocico AquilladoMexico?EN
LostANURAHYLIDAEPhrynomedusa fimbriataBrazil1923EX
LostANURAHYLIDAEEcnomiohyla echinataRana-de Arbol De Pliegue-oaxaqueñaMexico1962CR
LostANURAHYLIDAEPlectrohyla hazelaeHazel's TreefrogMexico1984CR
LostANURAHYLIDAEHyloscirtus chlorosteusParjacti TreefrogBolivia1970sCR
LostANURAHYLIDAECharadrahyla truxMexico?CR
LostANURAHYLIDAEHyla helenaeHelena's treefrogGuyana1914DD
LostANURAHYLIDAEBokermannohyla izecksohniBrazil?CR
LostANURAHYLIDAEBromeliohyla dendroscartaMexico1974CR
LostANURAHYLIDAEPlectrohyla calvicollinaMexico1984CR
LostANURAHYLODIDAEHylodes mertensiMertens' Tree ToadBrazil1960sDD
LostANURAHYLODIDAECrossodactylus grandisBahia spinythumb frogBrazil1960sDD
LostCAUDATAHYNOBIIDAEHynobius turkestanicusTurkestanian salamanderKyrgyzstan; Tajikistan; Uzbekistan1909DD
FOUNDANURAHYPEROLIIDAEChrysobatrachus cupreonitensDRC1950DD2011
LostANURAHYPEROLIIDAECallixalus pictusAfrican painted frogDemocratic Republic of Congo and Rwanda1950VU
FOUNDANURAHYPEROLIIDAEHyperolius leucotaeniusDRC1950EN2011
LostANURAHYPEROLIIDAECryptothylax minutusDRC?DD
FOUNDANURAHYPEROLIIDAEHyperolius chrysogasterDRC1954VU2011
LostANURAHYPEROLIIDAEAfrixalus schneideriSchneider's Banana FrogCameroon1889DD
FOUNDANURAHYPEROLIIDAEHyperolius nimbaeMount Nimba Reed FrogIvory Coast1967EN2010
FOUNDANURAHYPEROLIIDAEHyperolius sankuruensisOmaniundi Reed FrogDRC1979DD2010
LostGYMNOPHIONAICHTHYOPHIIDAEUraeotyphlus oommeniIndia1987DD
LostGYMNOPHIONAICHTHYOPHIIDAEIchthyophis longicephalusIndia1979DD
LostGYMNOPHIONAICHTHYOPHIIDAEUraeotyphlus menoniIndia1913DD
LostGYMNOPHIONAICHTHYOPHIIDAEUraeotyphlus malabaricusIndia1870DD
LostGYMNOPHIONAICHTHYOPHIIDAEIchthyophis singaporensisSingapore CaecilianSingapore1847DD
LostGYMNOPHIONAICHTHYOPHIIDAEUraeotyphlus interruptusIndia1992DD
LostGYMNOPHIONAICHTHYOPHIIDAEIchthyophis husainiIndia1983DD
LostANURALEPTODACTYLIDAEParatelmatobius lutziiBrazil1978DD
LostANURAMEGOPHRYIDAEScutiger occidentalisIndia1977NE
LostANURAMEGOPHRYIDAEScutiger maculatusPiebald Alpine toadChina1973CR
LostANURAMEGOPHRYIDAEXenophrys monticolaIndia1860NE
FOUNDANURAMICRIXALIDAEMicrixalus elegansIndia1937DD2010
LostANURAMICRIXALIDAEMicrixalus narainensisIndia1937DD
LostANURAMICRIXALIDAEMicrixalus swamianusIndia1937DD
FOUNDANURAMICRIXALIDAEMicrixalus thampiiIndia1981DD2010
LostANURAMICRIXALIDAEMicrixalus silvaticusIndia1882DD
LostANURAMICROHYLIDAERamanella minorIndia1937DD
LostANURAMICROHYLIDAEDasypops schirchiBrazil?VU
LostANURAMICROHYLIDAERamanella montanaIndia1854NT
FOUNDANURAMICROHYLIDAERamanella anamalaiensisIndia1937DD2010
LostANURAMYOBATRACHIDAERheobatrachus vitellinusEungella Gastric-brooding Frog, Northern Gastric Brooding Frog1980'sEX
LostANURAMYOBATRACHIDAERheobatrachus silusSouthern Gastric Brooding Frog, Southern Platypus FrogAustralia1979EX
LostANURAMYOBATRACHIDAETaudactylus acutirostrissharp-snouted day frogAustralia1997CR
LostANURAMYOBATRACHIDAETaudactylus diurnusMount Glorious Day Frog, Mount Glorious Torrent Frog, Southern Day FrogAustralia1970'SEX
LostANURAPETROPEDETIDAEPetropedetes dutoitiDu Toit's Torrent FrogKenya1962CR
FOUNDANURAPHRYNOBATRACHIDAEPhrynobatrachus asperDRC1951DD2009
LostCAUDATAPLETHODONTIDAEOedipina paucidentataEl Empalme Worm SalamanderCosta Rica1952CR
LostCAUDATAPLETHODONTIDAEThorius munificusMexico1997CR
LostCAUDATAPLETHODONTIDAEOedipina alturaCartago worm salamanderCosta Rica1985CR
FOUNDCAUDATAPLETHODONTIDAEChiropterotriton magnipesMexico?CR2010
FOUNDCAUDATAPLETHODONTIDAEChiropterotriton mosaueriCave splayfoot salamanderMexico1940DD2010
LostCAUDATAPLETHODONTIDAEThorius narismagnusMexico1980'SCR
LostCAUDATAPLETHODONTIDAECryptotriton alvarezdeltoroiMexico?EN
LostCAUDATAPLETHODONTIDAEBolitoglossa hermosaGuerreran climbing salamanderMexico1977NT
LostCAUDATAPLETHODONTIDAEPseudoeurycea anitaeMexico1993CR
LostCAUDATAPLETHODONTIDAEBolitoglossa jacksoniJackson's climbing salamanderGuatemala1975DD
LostCAUDATAPLETHODONTIDAEPseudoeurycea naucampatepetlMexico1988CR
LostCAUDATAPLETHODONTIDAEPlethodon ainsworthiAinsworth's salamanderUSA1964EX
LostCAUDATAPLETHODONTIDAEThorius minydemusMexico1999CR
LostCAUDATAPLETHODONTIDAEPseudoeurycea unguidentisMexico1976CR
LostCAUDATAPLETHODONTIDAEPseudoeurycea aquaticaMexico1978CR
LostCAUDATAPLETHODONTIDAEPseudoeurycea ahuitzotlTlaconeteMexico1960'sCR
LostCAUDATAPLETHODONTIDAEThorius infernalisAtoyac minute salamanderMexico1980'sCR
LostCAUDATAPLETHODONTIDAEPseudoeurycea brunnataGuatemala; Mexico?CR
LostCAUDATAPLETHODONTIDAEBradytriton silusGuatemala1976CR
LostCAUDATAPLETHODONTIDAEPseudoeurycea praecellensAdmirable False Brook SalamanderMexico1955CR
LostCAUDATAPLETHODONTIDAECryptotriton wakeiWake's moss salamanderGuatemala1998?CR
LostCAUDATAPLETHODONTIDAEEurycea robustaBlanco blind salamanderUSA1950sDD
LostCAUDATAPLETHODONTIDAEPseudoeurycea tlahcuilohMexico1960'sCR
FOUNDANURARANIDAEAmolops chakrataensisIndia1985DD2010
LostANURARANIDAEMeristogenys macrophthalmusMalaysia1964DD
LostANURARANIDAEAmolops jaunsariIndia1985DD
LostANURARANIDAEAmolops mengyangensisChina1957LC
LostANURARANIDAELithobates omiltemanusGuerran leopard frogMexico1978CR
LostANURARANIDAELithobates pueblaeRana PoblanaMexico1955CR
LostANURARANIDAELithobates fisheriLas Vegas leopard frogUSA1942EX
LostANURARANIDAEHylarana melanomentaPapahag frogPhilippines1920DD
LostANURARANIDAEHylarana intermediusIndia1937NT
LostANURARANIDAEHylarana montanusIndia1922NT
LostANURARANIDAELithobates tlalociTlaloc's Leopard FrogMexico1985CR
LostANURARANIDAEHylarana bhagmandlensisIndia1921VU
LostANURARANIDAEGlandirana minimaSmall mountain frogChina1986CR
LostANURARANIXALIDAEIndirana longicrusIndia1937DD
LostANURARANIXALIDAEIndirana tenuilinguaIndia1937DD
LostANURARHACOPHORIDAEPseudophilautus extirpoSri Lanka1882EX
LostANURARHACOPHORIDAEChiromantis shyamrupusIndia1983DD
LostANURARHACOPHORIDAERaorchestes flaviventrisIndia1874DD
LostANURARHACOPHORIDAEPseudophilautus eximiusSri Lanka1933EX
LostANURARHACOPHORIDAEPhilautus sanctisilvaticusIndia1962CR
LostANURARHACOPHORIDAERaorchestes dublusIndia1872DD
LostANURARHACOPHORIDAEPhilautus jacobsoniJacobson's Bubble-nest FrogIndonesia1912CR
LostANURARHACOPHORIDAEPseudophilautus zimmeriSri Lanka1927?EX
LostANURARHACOPHORIDAEPseudophilautus stellatusSri Lanka1853EX
LostANURARHACOPHORIDAERaorchestes kempiiIndia1912DD
LostANURARHACOPHORIDAERaorchestes microdiscusIndia1912DD
LostANURARHACOPHORIDAERaorchestes jerdoniiIndia1872DD
LostANURARHACOPHORIDAERaorchestes travancoricusIndia1891EX
LostANURARHACOPHORIDAEPseudophilautus halyiSri Lanka1899EX
LostANURARHACOPHORIDAERaorchestes terebransIndia1983DD
LostANURARHACOPHORIDAERaorchestes sahaiIndia1988DD
LostANURARHACOPHORIDAEPseudophilautus zalSri Lanka1947?EX
LostANURARHACOPHORIDAEPseudophilautus malcolmsmithiSri Lanka1933EX
LostANURARHACOPHORIDAEPseudophilautus adspersusSri Lanka1886EX
LostANURARHACOPHORIDAEPseudophilautus nanusSri Lanka1869EX
LostANURARHACOPHORIDAEPseudophilautus variabilisSri Lanka1858?EX
LostANURARHACOPHORIDAEPseudophilautus nasutusSri Lanka1869EX
LostANURARHACOPHORIDAEPseudophilautus hypomelasSri Lanka1876EX
LostANURARHACOPHORIDAEPseudophilautus dimbullaeSri Lanka1886EX
LostANURARHACOPHORIDAEPseudophilautus temporalisSri Lanka1864EX
LostANURARHACOPHORIDAEPseudophilautus oxyrhynchusSri Lanka1872EX
LostANURARHACOPHORIDAEPseudophilautus pardusSri Lanka1859EX
LostANURARHACOPHORIDAEPseudophilautus rugatusSri Lanka1927EX
FOUNDANURARHACOPHORIDAEPseudophilautus semiruberSri Lanka1911DD2012
FOUNDANURARHACOPHORIDAERaorchestes chalazodesIndia1874CR2010
LostANURARHACOPHORIDAERaorchestes montanusIndia1876NA
LostANURARHACOPHORIDAEPseudophilautus maiaSri Lanka1876EX
LostANURARHACOPHORIDAETheloderma molochIndia1912VU
LostANURARHACOPHORIDAEPseudophilautus leucorhinusSri Lanka1856EX
LostCAUDATASALAMANDRIDAECynops wolterstorffiYunnan Lake Newt, Kunming Lake NewtChina1979EX
LostANURASTRABOMANTIDAEOreobates zongoensisBolivia1996CR
LostANURASTRABOMANTIDAEHoloaden bradeiBrazil1976CR
LostANURASTRABOMANTIDAEAtopophrynus syntomopusColombia1980CR
LostANURASTRABOMANTIDAEPristimantis bernaliArgelia Robber FrogColombia1981CR
LostANURAMICROHYLIDAEParhoplophryne usambaricaTanzania1920sCR
FOUNDGYMNOPHIONATYPHLONECTIDAEAtretochoana eiseltiBrazilDD2011