Kihnichthys

Kihnichthys ufermanni, the Usumacinta cichlid, is a species of cichlid found in a few rivers in the Usumacinta River basin in Guatemala and southern Mexico. It typically occurs in rivers that are about 10–50 m (33–164 ft) wide, fairly deep, have few or no aquaritc plants, and a variable water current.[1] This species is the only known member of its genus,[2] but several of its features, including the chisel-like teeth, are shared with Cincelichthys and whether they should be merged into a single genus is not yet fully resolved;[3] a review in 2020 recommended that the Usumacinta cichlid should be moved into Cincelichthys.[4] The Usumacinta cichlid reaches a standard length of 25 cm (10 in).[5]

Kihnichthys
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Genus: Kihnichthys
McMahan & Matamoros, 2015[2]
Species:
K. ufermanni
Binomial name
Kihnichthys ufermanni
(Allgayer, 2002)
Synonyms

Cichlasoma ufermanni Allgayer, 2002
Theraps ufermanni Allgayer, 2002

The generic name honours the Guatemalan ichthyologist Herman A. Kihn while the specific name honours the German aquarist, and friend of Robert Allgayer's, Alfred Ufermann who died in 2000.[6]

References
  1. Lyons, T.J. (2019). "Kihnichthys ufermanni". IUCN Red List of Threatened Species. 2019: e.T192889A2179668. doi:10.2305/IUCN.UK.2019-2.RLTS.T192889A2179668.en. Retrieved 28 December 2021.
  2. McMahan, C.D.; Matamoros, W.A.; Piller, K.R.; Chakrabarty, P. (2015). "Taxonomy and systematics of the herichthyins (Cichlidae: Tribe Heroini), with the description of eight new Middle American Genera" (PDF). Zootaxa. 3999 (2): 211–234. doi:10.11646/zootaxa.3999.2.3. PMID 26623572. S2CID 34699955.
  3. Říčan, O.; Piálek, L.; Dragová, K. & Novák, J. (2016). "Diversity and evolution of the Middle American cichlid fishes (Teleostei: Cichlidae) with revised classification". Vertebrate Zoology. 66 (1): 1–102.
  4. Artigas Azas, Juan Miguel (2021). "Kihnichthys, a junior synonym of Cincelichthys". Cichlid News Magazine (4 ed.). 29: 10–12.
  5. Froese, Rainer; Pauly, Daniel (eds.) (2021). "Kihnichthys ufermanni" in FishBase. December 2021 version.
  6. Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Order CICHLIFORMES: Family CICHLIDAE: Subfamily CICHLINAE (d-w)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 11 November 2018.


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