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The olm (German: ⓘ) or proteus (Proteus anguinus) is an aquatic salamander which is the only species in the genus Proteus of the family Proteidae [2] and the only exclusively cave-dwelling chordate species found in Europe; the family's other extant genus is Necturus.
The spotted-tail cave salamander (Eurycea lucifuga), a lungless salamander endemic to caves of the eastern United States Eurycea (of North America) and Speleomantes (of Italy and France) are two genera of lungless salamanders with so many individual species termed "cave salamanders" that the entire group is sometimes so designated.
The terms troglobitic, stygobitic, stygofauna, troglofauna, and hypogean or hypogeic, are often used for cave-dwelling organisms. [1] Troglomorphism occurs in molluscs, velvet worms, arthropods, fish, amphibians (notably cave salamanders) and reptiles. To date no mammals or birds have been found to live exclusively in caves.
Despite dwindling numbers, the Fish and Wildlife Service removed the Berry Cave salamander as a candidate for protection under the Endangered Species Act.
The name 'cave salamander' can be confusing because the term is also used more generally to describe cave-dwelling salamanders. Despite its name, the cave salamander is much less cave adapted than other cave-dwelling salamanders like the olm or Texas blind salamander. Unlike the more cave-adapted species, the cave salamander is brightly ...
A troglobite (or, formally, troglobiont) is an animal species, or population of a species, strictly bound to underground habitats, such as caves.These are separate from species that mainly live in above-ground habitats but are also able to live underground (eutroglophiles), and species that are only cave visitors (subtroglophiles and trogloxenes). [1]
Photos show a juvenile, subadult and adult Raoni’s armored catfish. It has a brown or olive green body covered in bright yellow spots. This coloring helps camouflage the fish, another photo shows.
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish, and hypogean fish.