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 chambers (somewhat like mouthbrooders).[4] It was formerly incorrectly speculated that the same brooding behavior existed in other genera in the family and in the pirate perch (Aphredoderus sayanus).[4][5]

Amblyopsis
Ozark cavefish A. rosae
Northern cavefish A. spelaea
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Percopsiformes
Family: Amblyopsidae
Genus: Amblyopsis
DeKay, 1842
Type species
Amblyopsis spelaeus
DeKay, 1842

Species

There are currently 3 species of this genus:[1]

  • Amblyopsis hoosieri Niemiller, Prejean & Chakrabarty, 2014 (Hoosier cavefish)[3]
  • Amblyopsis rosae C. H. Eigenmann, 1898 (Ozark cavefish)
  • Amblyopsis spelaea DeKay, 1842 (northern cavefish)
gollark: It would no longer be possible for humans to cut many of them down.
gollark: Also deforestation. There are so many upsides.
gollark: Which would also fix flooding.
gollark: Also, rising sea levels. This could be eliminated as an issue by breaking all the various feedback loops enough that the oceans boil.
gollark: For example: apparently climate change is causing more/worse hurricanes or something. But if we heat the Earth by something like ~~10~~ 30 degrees, there will be hypercanes instead.

References
  1. Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Amblyopsis in FishBase. May 2017 version.
  2. Darwin, Charles (1979). The Origin of Species (1st ed.). New York: Avenel Books. p. 179. ISBN 0-517-30978-5.
  3. Chakrabarty, P.; Prejean, J.A.; Niemiller, M.L. (2014). "The Hoosier cavefish, a new and endangered species (Amblyopsidae, Amblyopsis) from the caves of southern Indiana". ZooKeys. 412: 41–57. doi:10.3897/zookeys.412.7245. PMC 4042695. PMID 24899861.
  4. Armbruster, J.W.; M.L. Niemiller & P.B. Hart (2016). "Morphological Evolution of the Cave-, Spring-, and Swampfishes of the Amblyopsidae (Percopsiformes)". Copeia. 104 (3): 763–777. doi:10.1643/ci-15-339.
  5. Fletcher, D.E.; Dakin, E.E.; Porter, B.A.; Avise, J.C. (2004). "Spawning behavior and genetic parentage in the pirate perch (Aphredoderus sayanus), a fish with an enigmatic reproductive morphology". Copeia. 2004 (1): 1–10. doi:10.1643/ce-03-160r.

Bibliography

Darwin, Charles (1979). The Origin of Species. John Murray. ISBN 0-517-30978-5.


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