Texas river cooter

Species of turtle

Texas river cooter
Conservation status

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Superfamily: Testudinoidea
Family: Emydidae
Genus: Pseudemys
Species:
P. texana
Binomial name
Pseudemys texana
Baur, 1893
Synonyms[2]
  • Pseudemys texana Baur, 1893
  • Chrysemys texana Ditmars, 1907
  • Pseudemys floridana texana Carr, 1938
  • Pseudemys concinna texana Conant, 1958
  • Chrysemys concinna texana Smith & Taylor, 1966
  • Chrysemys concinna texaba Gosławski & Hryniewicz, 1993 (ex errore)

The Texas river cooter (Pseudemys texana) is a species of freshwater turtle endemic to the U.S. state of Texas. It is found in the river basins of the Brazos, San Bernard, Colorado, Guadalupe, San Antonio, Nueces, and their tributaries. It is one of three species of cooters (Pseudemys) occurring in Texas, including the Rio Grande cooter (Pseudemys gorzugi) and the river cooter (Pseudemys concinna).[3]

Description

Texas cooter (Pseudemys texana) left, and red-eared slider (Trachemys scripta) right, basking in the Colorado River, Travis County, Texas (12 April 2012).

The Texas river cooter is a relatively large turtle, capable of growing to a shell length of 12+ inches (30.5 cm). They are green in color, with yellow and black markings that fade with age. Males can be distinguished from females by their longer tails, longer claws, and overall smaller size.

Taxonomy

The Texas cooter was once reclassified to a subspecies of the eastern cooter, Pseudemys concinna, but was given full species status in 1991.

Similar species

The red-eared slider (Trachemys scripta elegans) shares its range and habits, but can easily be distinguished from the Texas cooter by red patches on either side of its head. Various species of map turtle can also look much like juvenile Texas cooters.

References

  1. ^ IUCN (2016). "Pseudemys texana". IUCN Red List of Threatened Species. 2016. Retrieved 7 December 2016.old-form url
  2. ^ Fritz Uwe; Peter Havaš (2007). "Checklist of Chelonians of the World". Vertebrate Zoology. 57 (2): 196. doi:10.3897/vz.57.e30895.
  3. ^ Dixon, James R. (2013). Amphibians and Reptiles of Texas: with Keys, Taxonomic Synopses, Bibliography, and Distribution Maps. Texas A&M University Press, College Station, Texas. viii, 447 pp. ISBN 978-1-60344-734-8
  • Species Pseudemys texana at The Reptile Database
  • Chelonia.org: Pseudemys care

External links

Media related to Pseudemys texana at Wikimedia Commons

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Emydidae family
Genera
Species of the Emydidae family
Northern red-bellied cooter(Pseudemys rubriventris)
ChrysemysClemmysDeirochelysActinemysEmysEmydoideaGlyptemysGraptemysMalaclemysPseudemysTerrapeneTrachemysWilburemys
  • Wilburemys yakimensis
Phylogenetic arrangement of turtles based on turtles of the world 2017 update: Annotated checklist and atlas of taxonomy, synonymy, distribution, and conservation status. Key: †=extinct.
  • v
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Suborder
Superfamily
Family
Cryptodira
Chelonioidea
(Sea turtles)
Cheloniidae
Dermochelyidae
 
Kinosternoidea
Dermatemydidae
Kinosternidae
Testudinoidea
Emydidae
Geoemydidae
 Platysternidae
Testudinidae
Trionychia
Carettochelyidae
Trionychidae
 
 
Chelydridae
Nanhsiungchelyidae
Protostegidae
 
Pleurodira
 
Araripemydidae
Bothremydidae
Chelidae
Pelomedusidae
Podocnemididae
Sahonachelyidae
 
 
 
  • Phylogenetic arrangement of turtles based on Turtles of the World 2017 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. † = extinct.
Taxon identifiers
Pseudemys texana