Cavefish
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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
Garra andruzzii showing the pale colour and lack of eyes typical of cavefish. The large red spot on the head is the blood-filled gills, visible through the semi-transparent gill cover
As typical of cavefish, Typhleotris madagascariensis is an opportunistic feeder on various invertebrates
The waterfall climbing cavefish has several adaptations that allow it to climb and "walk" in a tetrapod-like fashion
The Mexican blind brotula and other cave-dwelling brotulas are among the few species that live in anchialine habitats
Stygofauna
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Stygofauna, or stygobionts are any fauna that live in groundwater systems or aquifers, such as caves, fissures, and vugs. Stygofauna and troglofauna are the two types of subterranean fauna. Both are a
Cavefish
…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. There are more than 200 scientifically described species of obligate cavefish found on all continents, except…
Astyanax jordani, a cavefish from Mexican caves
Orconectes australis, a cave crayfish
The Tumbling Creek cavesnail (Antrobia culveri) is a typical stygobite: small, white and blind.