Texas river cooter

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Texas river cooter
Pseudemys texana.jpg
Scientific classification OOjs UI icon edit-ltr.svg
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 texanaBaur, 1893
  • Chrysemys texanaDitmars, 1907
  • Pseudemys floridana texanaCarr, 1938
  • Pseudemys concinna texanaConant, 1958
  • Chrysemys concinna texanaSmith & Taylor, 1966
  • Chrysemys concinna texabaGosławski & 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]

Contents

Description

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

Related Research Articles

<i>Pseudemys</i> Genus of turtles

Pseudemys is a genus of large, herbivorous, freshwater turtles of the eastern United States and adjacent northeast Mexico. They are often referred to as cooters, which stems from kuta, the word for turtle in the Bambara and Malinké languages, brought to America by enslaved people from Africa.

<span class="mw-page-title-main">Florida red-bellied cooter</span> Species of turtle

The Florida red-bellied cooter or Florida redbelly turtle is a species of turtle in the family Emydidae.

<span class="mw-page-title-main">Texas Blackland Prairies</span> Temperate grassland region of Texas, US

The Texas Blackland Prairies are a temperate grassland ecoregion located in Texas that runs roughly 300 miles (480 km) from the Red River in North Texas to San Antonio in the south. The prairie was named after its rich, dark soil. Less than 1% of the original Blackland prairie vegetation remains, scattered across Texas in parcels.

<span class="mw-page-title-main">Alabama red-bellied cooter</span> Species of turtle native to Alabama

The Alabama red-bellied cooter or Alabama red-bellied turtle, is native to Alabama. It belongs to the turtle family Emydidae, the pond turtles. It is the official reptile of the state of Alabama.

<span class="mw-page-title-main">Plymouth red-bellied turtle</span> Population of red-bellied turtle

The Plymouth red-bellied turtle, sometimes called the Plymouth red-bellied cooter, is a disjunct population of northern red-bellied cooter endemic to Massachusetts.

<i>Graptemys</i> Genus of turtles

Graptemys is a genus of freshwater turtles containing 14 species, commonly known as map turtles. Graptemys are small to medium-sized turtles that are significantly sexually dimorphic, with females in some species attaining as much as twice the length and ten times the mass as males. Depending on the species, adult males range from 7–16 cm (2.75–6.25 in), adult females 10–29.5 cm (4–11.62 in), and hatchlings 2.5–3.8 cm (1–1.5 in), although some sources indicate female Barbour's map turtles grow to 33 cm (13 in) in length. Most species have a distinctive dark pigmented keel that is often notched or serrated running down the center of the carapace and serrated scutes on the rear margin. The head, neck, and limbs exhibit bold patterns of yellow lines and spots against darker green, olive, or black base colors. The patterns on the head can be important characters in identifying the various species. The common name "map turtle" is derived from the intricate patterns on their shells that are suggestive of topographical maps, although the patterns are more apparent in some species than others, and often become obscure in older specimens. Some species are occasionally called "sawbacks", in reference to the serrated keels on their shell.

<span class="mw-page-title-main">Florida softshell turtle</span> Species of turtle

The Florida softshell turtle is a species of turtle in the family Trionychidae. The species is native to the Southeastern United States.

<span class="mw-page-title-main">River cooter</span> Species of turtle

The river cooter is a species of freshwater turtle in the family Emydidae. The species is native to the central and eastern United States, but has been introduced into parts of California, Washington, and British Columbia.

<span class="mw-page-title-main">Coastal plain cooter</span> Species of turtle

The coastal plain cooter or Florida cooter is a species of large herbivorous freshwater turtle in the genus Pseudemys.

<span class="mw-page-title-main">Cagle's map turtle</span> Species of turtle

Cagle's map turtle is a species of turtle in the family Emydidae. The species is endemic to Texas, where it is native to the Guadalupe, San Antonio, and San Marcos Rivers.

<span class="mw-page-title-main">Rio Grande cooter</span> Species of turtle

The Rio Grande cooter is a species of turtle in the family Emydidae. The species is native to northeastern Mexico and the adjacent southwestern United States.

<span class="mw-page-title-main">Northern red-bellied cooter</span> Species of turtle

The northern red-bellied turtle or American red-bellied turtle is a species of turtle in the Pseudemys (cooter) genus of the family Emydidae.

<span class="mw-page-title-main">Eastern river cooter</span> Subspecies of turtle

The eastern river cooter is a subspecies of turtle native to the eastern United States, with a smaller population in the midwest. It is found in freshwater habitats such as rivers, lakes, and ponds.

<span class="mw-page-title-main">Yellow-bellied slider</span> Subspecies of turtle

The yellow-bellied slider is a land and water turtle belonging to the family Emydidae. This subspecies of pond slider is native to the southeastern United States, specifically from Florida to southeastern Virginia, and is the most common turtle species in its range. It is found in a wide variety of habitats, including slow-moving rivers, floodplain swamps, marshes, seasonal wetlands, and permanent ponds. Yellow-bellied sliders are popular as pets. They are a model organism for population studies due to their high population densities.

<span class="mw-page-title-main">Peninsula cooter</span> Species of turtle

The peninsula cooter is a species of freshwater turtle in the genus Pseudemys. It is sometimes considered a subspecies of the coastal plain cooter when that turtle is not itself considered a subspecies of the river cooter.

<span class="mw-page-title-main">Suwannee cooter</span> Subspecies of turtle

The Suwannee cooter is a subspecies of turtle in the genus Pseudemys. It is a subspecies of the river cooter. The species is endemic to Florida, including in the Suwannee River.

References

  1. IUCN (2016). "Pseudemys texana". IUCN Red List of Threatened Species . 2016. Retrieved 7 December 2016.
  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

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