Palaemonetes antrorum
Encyclopedia
Palaemonetes antrorum, also known as the Balcones cave shrimp and the Texas cave shrimp, is a species of palaemonid
shrimp
endemic to Texas
. It is listed as an endangered species
on the IUCN Red List
, and as a Species of Concern
by the United States Endangered Species Act
.
The species' type locality is an artesian well on what is now the campus of Texas State University–San Marcos
in San Marcos, Texas
. It has also been reported from the Edwards Aquifer
west to Uvalde County
.
Palaemonidae
Palaemonidae is a family of crustaceans of the order Decapoda. They belong to the infraorder Caridea, which contains the true shrimp; while some freshwater palaemonid species are known as "prawns", the family belongs to the suborder Pleocyemata like all true shrimp, whereas the true prawns are...
shrimp
Shrimp
Shrimp are swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water. Adult shrimp are filter feeding benthic animals living close to the bottom. They can live in schools and can swim rapidly backwards. Shrimp are an important...
endemic to Texas
Texas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...
. It is listed as an endangered species
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...
on the IUCN Red List
IUCN Red List
The IUCN Red List of Threatened Species , founded in 1963, is the world's most comprehensive inventory of the global conservation status of biological species. The International Union for Conservation of Nature is the world's main authority on the conservation status of species...
, and as a Species of Concern
Species of Concern
In wildlife conservation, Species of Concern is an informal term, not defined in the federal Endangered Species Act. The term commonly refers to species that are declining or appear to be in need of concentrated conservation actions. Many agencies and organizations maintain lists of these at-risk...
by the United States Endangered Species Act
Endangered Species Act
The Endangered Species Act of 1973 is one of the dozens of United States environmental laws passed in the 1970s. Signed into law by President Richard Nixon on December 28, 1973, it was designed to protect critically imperiled species from extinction as a "consequence of economic growth and...
.
The species' type locality is an artesian well on what is now the campus of Texas State University–San Marcos
Texas State University–San Marcos
Texas State University–San Marcos is a doctoral-granting university located in San Marcos, Texas...
in San Marcos, Texas
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....
. It has also been reported from the Edwards Aquifer
Edwards Aquifer
The Edwards Aquifer is one of the most prolific artesian aquifers in the world. Located on the eastern edge of Edwards Plateau in the U.S. state of Texas, it discharges about of water a year and directly serves about two million people...
west to Uvalde County
Uvalde County, Texas
Uvalde County is a county located in the U.S. state of Texas. In 2000, its population was 25,926. Its county seat is Uvalde. The county is named for Juan de Ugalde, the Spanish governor of Coahuila. Uvalde County was founded by Reading Wood Black who also founded the city of Uvalde,...
.