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The northern cavefish or northern blindfish (Amblyopsis spelaea) is found in caves through Kentucky and southern Indiana. The International Union for Conservation of Nature lists the species as near threatened. [1] The life cycle of northern cavefish includes a protolarval stage. In this stage, eggs and those that have recently hatched into ...
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. [1][page needed][2] There are more than 200 scientifically described species of obligate ...
The spring cavefish (Forbesichthys agassizii) spends some time aboveground and its adaptions to an underground habitat are not as extreme as most species in the family. Amblyopsids are generally small, the northern cavefish (largest species in family) reaching up to 11 cm (4.3 in) in length. [6] The amblyopsids are probably ancient in origin.
The Mexican tetra (Astyanax mexicanus), also known as the blind cave fish, blind cave characin or the blind cave tetra, is a freshwater fish in the Characidae family (tetras and relatives) of the order Characiformes. [4][5] The type species of its genus, it is native to the Nearctic realm, originating in the lower Rio Grande, and the Neueces ...
Amblyopsis. Amblyopsis is a genus of small (up to 11 cm or 4.3 in long) fish in the family Amblyopsidae that are endemic to the central and eastern United States. [1] Like other cavefish, they lack pigmentation and are blind. [2] The most recently described species was in 2014. [3] Uniquely among fish, Amblyopsis brood their eggs in the gill ...
Alabama cavefish. The Alabama cavefish (Speoplatyrhinus poulsoni) is a critically endangered species of amblyopsid cavefish found only in underground pools in Key Cave, located in northwestern Alabama, United States in the Key Cave National Wildlife Refuge. [6] It was discovered underneath a colony of gray bats in 1967 by researchers Robert A ...
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The Ozark cavefish, Amblyopsis rosae, is a small subterranean freshwater fish endemic to the United States. It has been listed as a threatened species in the US since 1984; [ 3 ] [ 4 ] the IUCN currently lists the species as Near Threatened, though it was previously listed as Vulnerable (VU D1+2 v2.3) between 1986 and 1996. [ 1 ]