Terrapins are one of several small species of
turtle (order Testudines) living in
fresh or
brackish water. Terrapins do not form a
taxonomic unit and may not be closely related. Many belong to the families
Geoemydidae and
Emydidae
Emydidae (Latin ''emys'' (freshwater tortoise) + Ancient Greek εἶδος (''eîdos'', “appearance, resemblance”)) is a family of testudines (turtles) that includes close to 50 species in 10 genera. Members of this family are commonly calle ...
.
The name "terrapin" is derived from ', a word in an
Algonquian language
["Terrapin"](_blank)
''www.merriam-webster.com'', accessed 9 November 2021 that referred to the species ''
Malaclemys terrapin'' (the Diamondback terrapin). It appears that the term became part of common usage during the colonial era of North America and was carried back to Great Britain. Since then, it has been used in common names for testudines in the English language.
Species
Testudine species with "terrapin" in their common English-language names include:
*
Bengal eyed terrapin, Burmese eyed turtle or Burmese peacock turtle, ''Morenia ocellata'', a testudine in the family Geoemydidae found in Burma and possibly Yunnan, China.
*
Diamondback terrapin or just "terrapin", ''Malaclemys terrapin'', a testudine of the family Emydidae, native to North America and Bermuda.
*
European pond terrapin or European pond turtle, ''Emys orbicularis'', a testudine in the family Emydidae found in Central Europe, West Asia and parts of North Africa.
*
Indian pond terrapin, or Indian black turtle, ''Melanochelys trijuga'', a testudine in the family Geoemydidae found in South Asia.
*
Mexican spotted terrapin or Mexican spotted wood turtle, ''Rhinoclemmys rubida'', a species of testudine in the family Geoemydidae, endemic to Mexico.
*
Northern river terrapin, ''Batagur baska'', a critically endangered testudine in the family Geoemydidae native to Cambodia.
*
Painted terrapin, ''Batagur borneoensis'', a testudine in the family Geoemydidae native to Brunei, Indonesia, Malaysia, and Thailand.
*
Red-eared slider, or red-eared terrapin, ''Trachemys scripta elegans'', a subspecies of
pond slider
The pond slider (''Trachemys scripta'') is a species of common, medium-sized, semiaquatic turtle. Three subspecies are described, the most recognizable of which is the red-eared slider (''T. s. elegans''), which is popular in the pet trade and ha ...
in the family Emydidae native to southern North America. It is a popular pet and an invasive species in many places.
*
Serrated hinged terrapin, ''Pelusios sinuatus'', is a species of testudine in the family Pelomedusidae found in southern Africa.
*
Seychelles black terrapin, ''Pelusios seychellensis'', an
extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
species of testudine in the family Pelomedusidae that was endemic to the Seychelles.
*
Smiling terrapin or
black marsh turtle, ''Siebenrockiella crassicollis'', a testudine in the family Geoemydidae native to Southeast Asia.
*
Southern river terrapin, ''Batagur affinis'', a testudine in the family Geoemydidae native to Cambodia.
*
Striped-neck terrapin
The Caspian turtle or striped-neck terrapin (''Mauremys caspica'') is a species of turtle in the family Geoemydidae (=Bataguridae), living in the eastern Mediterranean region from southwestern former USSR and central Iran to Saudi Arabia, Bahrai ...
or Caspian turtle, ''Mauremys caspica'', a testudine in the family Geoemydidae (Bataguridae), native to the eastern Mediterranean region.
*
Yellow-bellied slider or Yellow-bellied terrapin, ''Trachemys scripta scripta,'' another subspecies of pond slider in the family Emydidae native to southern North America. Like the red-eared slider, it is a popular pet and an invasive species in many places.
References
{{Animal common name
Reptile common names
Batagur
Emys
Malaclemys
Mauremys
Melanochelys
Morenia
Pelusios
Rhinoclemmys
Siebenrockiella
Trachemys