AmphibiaWeb - Eurycea robusta
AMPHIBIAWEB
Eurycea robusta
Blanco Blind Salamander
Subgenus: Typhlomolge
family: Plethodontidae
subfamily: Hemidactyliinae
 
Species Description: Hillis D.M., Chamberlain D.A., Wilcox T.P., and Chippindale P.T. (2001). A new species of subterranean blind salamander (Plethodontidae: Hemidactyliini: Eurycea: Typhlomolge) from Austin, Texas, and a systematic revision of central Texas paedomorphic salamanders. Herpetologica 57: 266–280.

© 2019 Travis LaDuc, Biodiversity Center, University of Texas (1 of 2)
Conservation Status (definitions)
IUCN (Red List) Status Data Deficient (DD)
NatureServe Status Use NatureServe Explorer to see status.
CITES No CITES Listing
National Status None
Regional Status Texas State Listed Threatened
Access Conservation Needs Assessment Report.

   

 

View distribution map in BerkeleyMapper.

Description
An extremely rare, blind, cave-dwelling salamander. Initially four individuals were discovered while a spring was being excavated, but only one preserved specimen currently is known. Pigmentless, gilled throughout life, and with extremely reduced eyes. The body is stout, the limbs relatively robust, and the tail thick with a moderately high tail fin. 57 mm snout to vent length (101 mm total length) (Potter and Sweet 1981; Petranka 1998).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: United States

U.S. state distribution from AmphibiaWeb's database: Texas

 

View distribution map in BerkeleyMapper.
Known only from a single locality northeast of San Marcos, Hays County, Texas. This species was discovered while excavating a spring in a dried bed in the Blanco River. The site has subsequently been covered with water from the Blanco River and filled with gravel and silt (Potter and Sweet 1981; Petranka 1998). Habits are likely to be similar to other subterranean salamanders of the genus Eurycea, particularly E. rathbuni.

Life History, Abundance, Activity, and Special Behaviors
Not known

Trends and Threats
Known only from the single collection of four individuals, this species has been the subject of a petition for Federal endangered species listing (Petranka 1998).

Comments
Until recently E. rathbuni and E. robusta were placed in the genus Typhlomolge. Although they are extreme in their specializations for living in underground aquatic systems, these two species are closely related to other species of Eurycea from Texas and the eastern United States (Chippindale 1995; Petranka 1998).

References

Chippindale, P. T. (1995). Evolution, phylogeny, biogeography, and taxonomy of Central Texas spring and cave salamanders, Eurycea and Typhlomolge (Plethodontidae: Hemidactyliini. Ph.D Dissertation, University of Texas.

Petranka, J. W. (1998). Salamanders of the United States and Canada. Smithsonian Institution Press, Washington D.C. and London.

Potter, F. E., Jr., and Sweet, S. S. (1981). ''Generic boundaries in Texas cave salamanders, and a redescription of Typhlomolge robusta (Amphibia: Plethodontidae).'' Copeia, 1981(1), 64-75.



Originally submitted by: Meredith J. Mahoney (first posted 2000-07-24)
Description by: Michelle S. Koo (updated 2021-04-27)
Distribution by: Michelle S. Koo (updated 2021-04-27)
Life history by: Michelle S. Koo (updated 2021-04-27)
Trends and threats by: Michelle S. Koo (updated 2021-04-27)
Comments by: Michelle S. Koo (updated 2021-04-27)

Edited by: M. J. Mahoney (2021-04-27)

Species Account Citation: AmphibiaWeb 2021 Eurycea robusta: Blanco Blind Salamander <https://amphibiaweb.org/species/4218> University of California, Berkeley, CA, USA. Accessed Sep 17, 2021.



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Citation: AmphibiaWeb. 2021. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 17 Sep 2021.

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