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Amphibians From Around the World


 Just how many species of amphibians are there in the world? Current estimates of amphibian species are approximately 5,383. This number is constantly changing though as new species are discovered, some species become extinct, and changes in classification may combine species or split one species into several different species. Here are the current numbers:

 

Scientific Order Common Name Known Species

Anura

Frogs & Toads

4963

Caudata

Salamanders

521

Gymnophiona

Caecilians

168

 

 

 

Total Amphibian Species

 

5652

Table data compiled from AmphibiaWeb (Accessed: 2002).

Frog Families of the World

There are 29 families which make up the Order Anura. Ten of these families have species represented in the United States, some introduced. Five of these families have representatives in Tennessee, none introduced. Twenty one percent of the anuran species of the United States occur in Tennessee. Less than one percent of the frog species of the world occur in Tennessee, yet they are one of our most important ecological indicators.

Family Known Species In World Species In United States Species In Tennessee

Allophrynidae

1

0

0

Arthroleptidae

78

0

0

Ascaphidae

2

2

0

Bombinatoridae

11

0

0

Brachycephalidae

6

0

0

Bufonidae

457

23

2

Centrolenidae

139

0

0

Dendrobatidae

219

1*

0

Discoglossidae

11

0

0

Heleophrynidae

6

0

0

Hemisotidae

9

0

0

Hylidae

851

29*

10

Hyperoliidae

253

0

0

Leiopelmatidae

4

0

0

Leptodactylidae

1130

7*

0

Mantellidae

151

0

0

Megophryidae

128

0

0

Microhylidae

364

3

1

Myobatrachidae

124

0

0

Nasikabatrachidae

1

0

0

Pelobatidae

11

7

1

Pelodytidae

3

0

0

Pipidae

30

1*

0

Pseudidae

9

0

0

Ranidae

732

29*

7

Rhacophoridae

220

0

0

Rhinodermatidae

2

0

0

Rhinophrynidae

1

1

0

Scaphiophryninae

9

0

0

Sooglossidae

4

0

0

 

 

 

 

Totals

4963

103

21

Salamander Families of the World

There are 10 families which make up the Order Caudata. Nine of these families have species represented in the United States. Seven of these families have representatives in Tennessee. Almost thirty three percent of the salamander species in the United States occur in Tennessee. Eleven percent of the salamander species of the world occur in Tennessee. The Great Smoky Mountains National Park is known as "The Salamander Capitol of the World."

 

Family Known Species In World Species In United States Species In Tennessee

Ambystomatidae

30

15

6

Amphiumidae

3

3

1

Cryptobranchidae

3

1

1

Dicamptodontidae

4

4

0

Hynobiidae

44

0

0

Plethodontidae

360

136

46

Proteidae

6

5

1

Rhyacotritonidae

6

4

0

Salamandridae

63

6

1

Sirenidae

4

4

1

 

 

 

 

Totals

521

178

57