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	Conservation Status (definitions)
IUCN (Red List) Status	Least Concern (LC) See threat category on the IUCN web site.
CITES	No CITES Listing
Other International Status	None
National Status	None
Regional Status	None

Description
It is a typhlonectid with a body length between 99 and 530 mm and 70 to 80 incomplete primary body annuli. Secondary annulli are absent, and the skin is smooth. The dorsum is bright black, the venter is black-gray, and both are covered with minute white spots. In addition, The tentacle and the eye are surrounded by a whitish area which can or cannot be continuous. The disc area surrounding the vent is cream-white. The nostrils are dorsolateral and closer to the snout than to the eyes, and the tentacle extrudes midway between the eye and the snout. The skull is similar to that ot other typhlonectids, but with an open tentacular groove that crosses the maxillopalatine. The quadrate and pterygoid are completely fused.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Argentina, Brazil, Uruguay

View distribution map using BerkeleyMapper.

C. indistinctum is found in temperate South America, in the Rio de la Plata basin and in drainages along the adjacent coasts.

References
 

Gudynas, E. and Williams, J. D. (1963). ''Chthonerpeton indistinctum (Reinhardt and Luetken).'' Catalogue of American Amphibians and Reptiles. American Society of Ichthyologists and Herpetologists, 531.1-531.2.

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