Algansea

Algansea is a genus of ray-finned fish in the family Cyprinidae, distributed in the Lerma–Chapala–Grande de Santiago, Pátzcuaro, Armería, Ameca, Ayutla and Tuxpan basins in west-central Mexico (mostly Jalisco, but also surrounding states and the State of Mexico).[1][2][3][4] The genus includes both species that are locally numerous,[5] and species that are highly threatened.[2][4] Their closest relative is the longfin dace (Agosia chrysogaster).[3]

Algansea
Algansea popoche
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Leuciscinae
Genus: Algansea
Girard, 1856
Type species
Leuciscus tincella
Species

See text

Synonyms

Algansea are fairly small fish that typically are between 5 and 15 cm (2–6 in) in standard length, although A. lacustris and A. popoche can reach up to 23–26 cm (9–10 in).[2][4] The different species are generally quite similar in their appearance, being yellowish- or olive-brown overall; darker on the upperparts and paler, more silvery on the underparts. They have a long blackish line along the side of the body from the gill covers to the tail base, or a blackish spot at the base of the tail.[2][4]

Species

There are currently eight recognized species in this genus:[1]

  • Algansea amecae Pérez-Rodríguez, Pérez-Ponce de León, Domínguez-Domínguez & Doadrio, 2009 (Ameca chub)
  • Algansea aphanea C. D. Barbour & R. R. Miller, 1978 (riffle chub)
  • Algansea avia C. D. Barbour & R. R. Miller, 1978 (remote chub)
  • Algansea barbata Álvarez & Cortés, 1964 (Lerma chub)
  • Algansea lacustris Steindachner, 1895 (Pátzcuaro chub)
  • Algansea monticola C. D. Barbour & Contreras-Balderas, 1968 (mountain chub)
  • Algansea popoche (D. S. Jordan & Snyder, 1899) (popoche chub)
  • Algansea tincella (Valenciennes, 1844) (spottail chub)
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References
  1. Froese, Rainer and Pauly, Daniel, eds. (2018). Species of Algansea in FishBase. September 2018 version.
  2. Pérez-Rodríguez, R.; G. Pérez-Ponce de León; O. Domínguez-Domínguez; I. Doadrio (2009). "A new species of Algansea (Actinopterygii: Cyprinidae) from the Ameca River basin, in Central Mexico". Revista Mexicana de Biodiversidad. 80: 483–490. doi:10.22201/ib.20078706e.2009.002.609.
  3. Pérez-Rodríguez, R.; O. Domínguez-Domínguez; G. Pérez-Ponce de León; I. Doadrio (2009). "Phylogenetic relationships and biogeography of the genus Algansea Girard (Cypriniformes: Cyprinidae) of central Mexico inferred from molecular data". BMC Evolutionary Biology. 9: 223. doi:10.1186/1471-2148-9-223. PMC 2759940. PMID 19735558.
  4. Ceballos, G.; E.D. Pardo; L.M Estévez; H.E. Pérez, eds. (2016). Los peces dulceacuícolas de México en peligro de extinción. pp. 106–113, 429. ISBN 978-607-16-4087-1.
  5. "Lake Cajititlan: Fish die off in large numbers". BBC. 18 August 2015. Retrieved 20 September 2018.


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