List of amphibians of Pennsylvania explained

This is a list of amphibians of Pennsylvania as listed by the Pennsylvania Fish and Boat Commission.[1] Notes on ranges provided by Pennsylvania Amphibian & Reptile Survey.[2] Pennsylvania has 41 native species of amphibians, with 23 salamanders and newts, and 18 species of frogs and toads. Of these species, 13 are of special concern, 2 are threatened, 6 are endangered, and 1 species is extirpated.

Caudata - newts and salamanders

Family: Ambystomatidae - mole salamanders

ImageCommon nameScientific nameStatusNotes Distribution
Ambystoma jeffersonianum
(Green, 1827)
Species of special concernFemales of this species can form a unisexual form that cannot be identified to species level without DNA testingStatewide, seemingly absent from near Philadelphia and the surrounding counties
Ambystoma laterale
Hallowell, 1856
EndangeredFemales of this species can form a unisexual form that cannot be identified to species level without DNA testing[3] Allegheny National Forest and surrounding areas; also a single record from Crawford County[4] and Northampton County
Ambystoma maculatum
(Shaw, 1802)
AbundantStatewide
Ambystoma opacum
(Gravenhorst, 1807)
Species of special concernPrimarily southeastern counties, extends into central counties, scattered records in eastern counties
Ambystoma tigrinum
(Green, 1825)
Extirpated[5] Females of this species can form a unisexual form that cannot be identified to species level without DNA testingFormerly known from Allegheny County and Cumberland County, has not been recorded in over a century

Family: Cryptobranchidae - giant salamanders

Family: Plethodontidae - lungless salamanders

ImageCommon nameScientific nameStatusNotes Distribution
Aneides aeneus
(Cope & Packard, 1881)
ThreatenedFayette County
Desmognathus fuscus
(Rafinesque, 1820)
AbundantStatewide
Desmognathus monticola
Dunn, 1916
Species of special concernSouthwestern counties
Desmognathus ochrophaeus
Cope, 1859
AbundantStatewide except southeast and some central counties
Eurycea bislineata
(Green, 1818)
AbundantStatewide
Eurycea longicauda longicauda
(Green, 1818)
AbundantNominate subspeciesStatewide, but notably absent from Wayne County and Erie County
Gyrinophilus porphyriticus porphyriticus
(Green, 1827)
AbundantNominate subspeciesStatewide except southeast
Hemidactylium scutatum
(Tschudi, 1838)
AbundantStatewide
Plethodon cinereus
(Green, 1818)
AbundantStatewide
Plethodon electromorphus
Highton, 1999
Species of special concernSouthwestern counties
Plethodon glutinosus
(Green, 1818)
AbundantStatewide
Plethodon hoffmani
Highton, 1972
Species of special concernCentral and south-central counties
Plethodon wehrlei
Fowler and Dunn, 1917
AbundantNorth-central and west-central counties
Pseudotriton montanus montanus
Baird, 1850
EndangeredNominate subspeciesFranklin County and Cumberland County
Pseudotriton ruber ruber
(Latreille, 1801)
AbundantNominate subspeciesStatewide

Family: Proteidae - Mudpuppies

Family: Salamandridae - Newts

Anura - frogs and toads

Family: Bufonidae - true toads

ImageCommon nameScientific nameStatusNotes Distribution
Anaxyrus americanus americanus
(Holbrook, 1836)
AbundantStatewide
Anaxyrus fowleri
(Hinckley, 1882)
Species of special concernPrimarily eastern, with some scattered central and western observations and a notable population on Presque Isle State Park in Erie County[6]

Family: Hylidae - tree frogs

ImageCommon nameScientific nameStatusNotes Distribution
Acris crepitans
Baird, 1854
EndangeredIf subspecies are recognized, it would be the nominate subspecies Acris crepitans crepitansSoutheastern, south-central, and Luzerne County
Dryophytes chrysoscelis
(Cope, 1880)
Species of special concernUsually indistinguishable from Dryophytes versicolor without DNA analysis or analysis of mating call[7]
Sometimes placed in the genus Hyla
Southeastern and southwestern counties
Dryophytes versicolor
(Le Conte, 1825)
AbundantUsually indistinguishable from Dryophytes chrysoscelis without DNA analysis or analysis of mating call
Sometimes placed in the genus Hyla
Statewide, less common in southwestern counties
Pseudacris brachyphona
(Cope, 1889)
Species of special concernSouthwestern counties
Pseudacris crucifer
(Wied-Neuwied, 1838)
AbundantStatewide
Pseudacris feriarum
Baird, 1854
Species of special concernCentral and south-central
New Jersey chorus frogPseudacris kalmi
Harper, 1855
EndangeredBucks County and Montgomery County
Pseudacris triseriata
Wied-Neuwied, 1838
Species of special concernNot officially seen in Pennsylvania since 1958Western counties

Family: Ranidae - true frogs

ImageCommon nameScientific nameStatusNotes Distribution
Lithobates catesbeianus
(Shaw, 1802)
AbundantStatewide
Green frogLithobates clamitans
(Rafinesque, 1820)
AbundantIf subspecies are recognized, the Pennsylvania subspecies would be Lithobates clamitans melanotaStatewide
Lithobates kauffeldi
(Feinberg et al., 2014)
EndangeredBucks County, Philadelphia County, and Delaware County
Pickerel frogLithobates palustris
(Le Conte, 1825)
AbundantStatewide
Northern leopard frogLithobates pipiens
(von Schreber, 1782)
Species of special concernScattered reports across the state, but more common to the west and especially the northwest, and also around Northumberland County
Lithobates sphenocephalus utricularius
(Harlan, 1825)
EndangeredSoutheasternmost counties
Lithobates sylvaticus
(Le Conte, 1825)
AbundantStatewide

Family: Scaphiopodidae - American spadefoots

Nonnative species

Several species of frog have been introduced to Pennsylvania, mostly around the Philadelphia area.

Notes and References

  1. Web site: Pennsylvania Native Reptile and Amphibian Species . Pennsylvania Fish and Boat Commisision . Commonwealth of Pennsylvania . 18 September 2024.
  2. Web site: PARS. Pennsylvania Amphibian & Reptile Survey . The Mid-Atlantic Center for Herpetology and Conservation . 18 September 2024.
  3. Gibbs . H. Lisle . Denton . Robert D. . Cryptic sex? Estimates og genome exchange in unisexual mole salamanders (Ambystoma sp.) . Molecular Ecology . 2016 . 25 . 2805–2816 . 10.1111/mec.13662.
  4. Ambystoma laterale. 2432014. 2024-09-19.
  5. Web site: Ambystoma tigrinum Eastern Tiger Salamander . NatureServe Explorer . 19 September 2024.
  6. 2024-09-19. Anaxyrus fowleri. 2422905.
  7. Roseman . Kimberly . 2017 . The Utility of Hyla squirrella Microsatellite DNA Markers for Population Genetic Studies of Hyla versicolor and Hyla chrysoscelis . Western Illinois University ProQuest Dissertations. .
  8. 2024-09-19. 2428083. Osteopilus septentrionalis.
  9. 2024-09-19. Hyla versicolor. 2427567.
  10. 2024-09-19. 2427574. Hyla cinerea.