Eurycea robusta
Encyclopedia
The Blanco Blind Salamander (Eurycea robusta) is a species
of aquatic, lungless salamander
native to the United States
. It is endemic
to a small region of the Blanco River near San Marcos
in Hays County, Texas
. Its habitat, deep in limestone
karst
, makes collecting specimens for research particularly problematic. It is known from only a single specimen, collected in the 1950s.
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of aquatic, lungless salamander
Lungless salamander
The Plethodontidae, or Lungless salamanders, are a family of salamanders. Most species are native to the western hemisphere, from British Columbia to Brazil, although a few species are found in Sardinia, Europe south of the Alps, and South Korea...
native to the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. It is endemic
Endemic (ecology)
Endemism is the ecological state of being unique to a defined geographic location, such as an island, nation or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, all species of lemur are endemic to the...
to a small region of the Blanco River near San Marcos
San Marcos, Texas
San Marcos is a city in the U.S. state of Texas, and is the seat of Hays County. Located within the metropolitan area, the city is located on the Interstate 35 corridor—between Austin and San Antonio....
in Hays County, Texas
Hays County, Texas
Hays County is a county located on the Edwards Plateau in the U.S. state of Texas. In 2010, its official population had reached 157,107. It is named for John Coffee Hays, a Texas Ranger and Mexican-American War officer. The seat of the county is San Marcos....
. Its habitat, deep in limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
karst
KARST
Kilometer-square Area Radio Synthesis Telescope is a Chinese telescope project to which FAST is a forerunner. KARST is a set of large spherical reflectors on karst landforms, which are bowlshaped limestone sinkholes named after the Kras region in Slovenia and Northern Italy. It will consist of...
, makes collecting specimens for research particularly problematic. It is known from only a single specimen, collected in the 1950s.