List of amphibians of Texas

Seventy-two amphibian species are found in the American state of Texas, including forty-four species of frog and twenty-eight species of salamander. Four species are categorized as endangered by the International Union for Conservation of Nature: the Barton Springs salamander, the Texas blind salamander, the black-spotted newt, and the Houston toad. Furthermore, Texas law protects several native amphibians, designating eleven species as threatened within the state and four others as endangered.[1][2][3]

A map of the state of Texas that displays elevation
Topographic map of Texas

The varied geography of Texas, the second-largest state, hosts a variety of habitats for amphibians, including swamps and the Piney Woods in the east, rocky hills and limestone karst in the central Hill Country of the Edwards Plateau, desert in the south and west, mountains in the far west (the Trans-Pecos), and grassland prairie in the north, also known as the Panhandle. This vast contrast in biomes makes Texas home to a wide variety of herpetofauna.[4][5][6] The state's many rivers, including the Rio Grande, the Colorado River, and the Trinity River, also provide diverse aquatic habitats.[7][8] Its central position in the United States means that species found primarily in either the western or eastern reaches of the country often have their ranges meeting in the state. Additionally, its proximity to Mexico is such that many species found there and into Central America also range as far north as Texas.[4] Moreover, the karst topography of central Texas has created spring and cave ecosystems inhabited by several endemic species,[9] such as the cave-dwelling Texas blind salamander.[10]

List of species

Protected status under Texas law[2][3]
Threatened
Endangered

Order Anura

Family Bufonidae

Bufonidae is a family of toads, often called the "true toads". Although a widely varied family, Bufonidae includes the stereotypical toad: dry warty skin and shortened forelimbs and hindlimbs. Bufonids also carry potent skin toxins, sometimes concentrated in the parotoid gland.[11]

Bufonidae
SpeciesCommon nameDistributionStatus[a]Image
Anaxyrus americanusAmerican toadOccurs in northeast Texas[12] LC [13]
Anaxyrus cognatusGreat Plains toadFound in playa wetlands in the Great Plains area of the state[14] LC [15]
Anaxyrus debilisGreen toadFound in eastern Texas[16] LC [17]
Anaxyrus houstonensisHouston toadFound in the southeast counties of Austin, Bastrop, Burleson, Colorado, Lee, Leon, Lavaca, Milam, and Robertson[18] EN [19]
Anaxyrus punctatusRed-spotted toadFound in central and western Texas[20] LC [21]
Anaxyrus speciosusTexas toadCommon throughout western two-thirds of Texas, population declining in the Rio Grande Valley[22] LC [23]
Anaxyrus woodhousiiWoodhouse's toadFound in central, west and north Texas[24] LC [25]
Incilius nebuliferCoastal plains toadFound along coastal plains, formerly considered the same species as Incilius valliceps[26] LC [27]
Rhinella marinaCane toadNative to extreme southern Texas, invasive species in other parts of the United States[28] LC [29]

Family Hylidae

Hylidae is a family of frogs which are commonly found in the New World. They may be better known as tree frogs.[30]

Hylidae
SpeciesCommon nameDistributionStatusImage
Acris blanchardiBlanchard's cricket frogFound throughout Texas, except far West Texas and the Panhandle[31] NE 
Acris crepitansNorthern cricket frogFound as far west as western Texas[32] LC [33]
Dryophytes arenicolorCanyon tree frogIsolated populations in arid environments and streambanks in Texas[34] LC [35]
Dryophytes chrysoscelis Cope's gray tree frogDocumented in east-central Texas[36] LC [37]
Dryophytes cinereusGreen tree frogOccurs throughout eastern Texas and as far south as the Rio Grande Valley[38] LC [39]
Hyla squirellaSquirrel tree frogFound in eastern Texas[40] LC [41]
Dryophytes versicolorGray tree frogFound in the eastern-central portion of the state, excluding the most eastern fifth[42] LC [43]
Pseudacris clarkiiSpotted chorus frogFound in central Texas[44] LC [45]
Pseudacris cruciferSpring peeperFound in eastern Texas[46] LC [47]
Pseudacris fouquetteiCajun chorus frogFound throughout eastern Texas[48] LC [49]
Pseudacris streckeriStrecker's chorus frogFound throughout eastern Texas[50][51] LC [51]
Smilisca baudiniiMexican tree frogSouthern extreme of Texas[52] LC [53]

Family Leptodactylidae

Leptodactylidae is a family of frogs found only in the New World. Texas encompasses part of their northern-most distribution. Medium to large frogs, they have robust hindlimbs that make them strong jumpers.[54][55]

Leptodactylidae
SpeciesCommon nameDistributionStatusImage
Craugastor augustiEastern barking frogFound in western and central Texas and along the Balcones Fault; isolated populations exist in the Trans-Pecos region[56] LC [57]
Eleutherodactylus cystignathoidesRio Grande chirping frogNative to extreme southern Texas along the lower Rio Grande Valley in Cameron and Hildago counties[58] LC [59]
Eleutherodactylus guttilatusSpotted chirping frogFound in the Big Bend region[60] LC [61]
Eleutherodactylus marnockiiCliff chirping frogCommon in rocky areas of central Texas[62] LC [63]
Eleutherodactylus planirostrisGreenhouse frogIntroduced species found on Galveston Island[64] LC [65]
Leptodactylus fragilisMexican white-lipped frogDocumented in the extreme southern portion of the lower Rio Grande Valley[66] LC [67]

Family Microhylidae

Microhylidae is a family of frogs. They can often be identified by their tear-dropped shape, hence the common name "narrow-mouthed frogs".[68]

Microhylidae
SpeciesCommon nameDistributionStatusImage
Gastrophryne carolinensisEastern narrowmouth frogAs far west as central Texas[69] LC [70]
Gastrophryne olivaceaGreat Plains narrowmouth frogFound throughout Texas except for northern Panhandle and western extremes[71] LC [72]
Hypopachus variolosusMexican narrow-mouthed frogFound in 15 counties in southern Texas[73] LC [74]

Family Ranidae

Ranidae, true frogs, are the largest family of frogs. Members of this family, called Ranids, typically have robust hindlimbs, toe webbing, and an aquatic tadpole stage.[75]

Ranidae
SpeciesCommon nameDistributionStatusImage
Lithobates areolatusCrawfish frogOnce found throughout eastern Texas, now limited to two populations near coast[76] NT [77]
Lithobates berlandieriRio Grande leopard frogOccur in central and western areas of the state[78] LC [79]
Lithobates blairiPlains leopard frogDistribution includes northern Texas[80] LC [81]
Lithobates catesbeianusBullfrogOccurs throughout most of Texas[82] LC [83]
Lithobates clamitansGreen frogThroughout eastern Texas[84] LC [84]
Lithobates grylio Pig frogGalveston Bay and Gulf Coastal Plain to the east[85] LC [86]
Lithobates palustrisPickerel frogFound throughout eastern Texas[87] LC [88]
Lithobates sphenocephalaSouthern leopard frogCommon in the eastern third of Texas[89] LC [90]

Family Rhinophrynidae

Rhinophrynidae are a family of frogs containing only one extant genus, the monotypic Rhinophrynus.[91] Rhinophrynus is a burrowing ant and termite eater, hence the common name "burrowing frog".[92][93]

Rhinophrynidae
SpeciesCommon nameDistributionStatusImage
Rhinophrynus dorsalisMexican burrowing toadDocumented in the counties of Starr and Zapata in extreme southwestern Texas[92] LC [94]

Family Scaphiopodidae

Scaphiopodidae are a family of frogs. Commonly called spadefoot frogs, they are often inconspicuously coloured. Members of this family are predominantly fossorial, living underground until rain arrives. To aid in digging, they have keratinized protrusions on their feet.[95]

Scaphiopodidae
SpeciesCommon nameDistributionStatusImage
Scaphiopus couchiiCouch's spadefoot toadCentral Texas[96] LC [97]
Scaphiopus hurteriiHurter's spadefoot toadInhabits freshwater areas of Texan forest, shrubland, grassland, and wetlands[98] LC [98]
Spea bombifronsPlains spadefoot toadFound in the arid plains of northwest Texas; isolated populations also exist in south Texas[99] LC [100]
Spea multiplicataNew Mexico spadefoot toadFound in central Texas[101] LC [102]

Order Urodela

Family Amphiumidae

Amphiumidae are a family of salamanders. Members of the family are known as amphiumas.[103] These large salamanders are often mistaken for eels, hence the colloquial name "conger eels".[104][105] Completely aquatic, these long salamanders can survive droughts by forming a mucous cocoon underground. They can live without food for up to three years and may live for almost 30 years.[106]

Amphiumidae
SpeciesCommon nameDistributionStatusImage
Amphiuma tridactylumThree-toed amphiumaNative to the eastern area of the state[107] LC [108]

Family Salamandridae

Salamandridae are a family of salamanders. Most members, called salamandrids, produce a potent toxin in their skin. Salamandrids typically have patterns of bright and contrasting colors, usually to warn potential predators of their toxicity. They have four well-developed limbs.[109][110]

Salamandridae
SpeciesCommon nameDistributionStatusImage
Notophthalmus meridionalisBlack-spotted newtFound in southern Texas[111] EN [112]
Notophthalmus viridescensEastern newtNative to eastern Texas[113] LC [114]

Family Ambystomatidae

Ambystomatidae is a family of mostly terrestrial salamanders. Commonly called "mole salamanders", most members of this family live in rodent burrows, only emerging on rainy nights to mate and feed. These relatively large salamanders also typically have mass migrations to mating ponds.[115]

Ambystomatidae
SpeciesCommon nameDistributionStatusImage
Ambystoma maculatumSpotted salamanderFound near stagnant water in hardwood and mixed forests[116] LC [117]
Ambystoma mavortiumBarred tiger salamanderDistributed throughout Texas except eastern quarter[118] LC [119]
Ambystoma opacumMarbled salamanderFound throughout East Texas, from Red River south to the Gulf of Mexico[120] LC [121]
Ambystoma talpoideumMole salamanderFound in the Gulf Coastal Plain of east Texas[122] LC [123]
Ambystoma texanumSmallmouth salamanderEastern Texas[124] LC [125]
Ambystoma tigrinumEastern tiger salamanderDistributed throughout Texas except eastern quarter[118] LC [126]

Family Plethodontidae

Plethodontidae are a family of salamanders found mostly in the Western Hemisphere; however, some species are found in Southern Europe and South Korea. They are the largest group of salamanders.[127] Several species of salamanders are endemic to specific cave systems in Texas. Due to their small habitat and specified role, many are threatened or endangered.[128][129] In 2019, researchers associated with the University of Texas Austin and Texas Parks and Wildlife announced the discovery of an additional three species of spring and cave dwelling salamanders in the Eurycea genus that are yet to be named.[130][131]

Plethodontidae
SpeciesCommon nameDistributionStatusImage
Desmognathus auriculatusSouthern dusky salamanderAs far east as the Trinity River Basin[132] LC [133]
Eurycea latitansCascade Caverns salamanderEndemic to the Cascade Caverns of central Texas and other cave systems in close proximity[134] VU [135]
Eurycea nanaSan Marcos salamanderFound only in the San Marcos River in Hays County[136] VU [137]
Eurycea naufragiaGeorgetown salamanderEndemic to area northeast of the Colorado River in the Edwards Plateau region of central Texas[138] EN [139]
Eurycea neotenesTexas salamanderSpring and cave systems in the Edwards Plateau region of central Texas[140] VU [141]
Eurycea quadridigitataDwarf salamanderFound in eastern Texas[142] LC [143]
Eurycea rathbuniTexas blind salamanderOnly lives in water-filled caves in the Edwards Plateau in Hays County[10] VU [144]
Eurycea robustaBlanco blind salamanderUnknown, single specimen found in subterranean system under Blanco River in Hays County[145] DD [146]
Eurycea chisholmensisSalado Springs salamanderEndemic to area northeast of the Colorado River in the Edwards Plateau region of central Texas[147] VU [148]
Eurycea sosorumBarton Springs salamanderFound only at outlets of Barton Springs in Zilker Park, Austin[149] VU [150]
Eurycea tonkawaeJollyville Plateau salamanderEndemic to the Buttercup Cave system near Austin[151] EN [152]
Eurycea tridentiferaComal blind salamanderEndemic to Honey Creek Cave in Comal County and other caves in Cibolo Sinkhole Plain[153] VU [154]
Eurycea troglodytesValdina Farms salamanderEndemic to springs and cave systems in the counties of Bandera, Edwards, western Kerr, Medina, Real, and Uvalde[155] DD [156]
Eurycea waterlooensisAustin blind salamanderKnown only from outflows of Barton Springs in Austin[157] VU [158]
Eurycea pterophilaFern bank salamanderThis species inhabits springs within the watershed of the Blanco River[131] DD [159]
Plethodon albagulaWestern slimy salamanderDisjunct, and genetically divergent, populations in central, southeastern, and northeastern Texas[160][161] LC [162]
Plethodon serratusSouthern red-backed salamanderAlthough there are several populations throughout the southeast US, this species is only known in Texas from a single specimen collect in Nacogdoches County in 1940[163] LC [164]

Family Sirenidae

Sirenidae are a family of aquatic salamanders only found in northern Mexico and the Southeastern United States.[165] Family members, called sirens, have very small forelimbs and lack hind limbs altogether.[166] Sirens are generally regarded as the most primitive extant salamanders.[167]

Sirenidae
SpeciesCommon nameDistributionStatusImage
Siren intermedia nettingi[b]Western lesser sirenFound in east and southeast Texas, as well as in the Rio Grande Valley[168] LC [169]
Siren intermedia texana[b][c]Rio Grande lesser sirenOccurs in south Texas[170] NE 

Family Proteidae

Proteidae are a family of aquatic salamanders only found in North America and Europe. Some members are called mudpuppies, waterdogs, or olms. They are paedomorphic and exhibit laterally compressed tail fins and the red, filamentous external gills.[171] Only one species of Proteidae is found in Texas.

Proteidae
SpeciesCommon nameDistributionStatusImage
Necturus beyeriGulf Coast waterdogFound in the Sabine River System[172] LC [173]

See also

Notes and references

Notes

 a: Conservation status at a world level of the species according to the IUCN Red List:Conservation status – IUCN Red List of Threatened Species:

 EX Extinct
 EW Extinct in the wild
 CR Critically endangered
 EN Endangered
 VU Vulnerable
 NT Near threatened
 LC Least concern
 DD Data deficient
 NE Not evaluated

 b: Both are subspecies of Siren intermedia, the lesser siren.[174]
 c: The status of Siren intermedia texana as a distinct subspecies is contested. Some researchers have claimed that it is indistinguishable from Siren intermedia nettingi.[174]

References

External links