Acanthicus adonis

Acanthicus adonis, the adonis pleco or polka dot lyre-tail pleco, is a large species of armored catfish.[1][2] It was originally described from the lower Tocantins River in Brazil, but individuals resembling the species have also been recorded from Amazonian Peru.[3][4] The species is occasionally seen in the aquarium trade, but its massive adult size and territorially aggressive behavior means that a very large tank is required.[4][1] These fish are opportunistic omnivores.[1]

Acanthicus adonis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Genus: Acanthicus
Species:
A. adonis
Binomial name
Acanthicus adonis

Appearance

Acanthicus adonis is among the largest armored catfish species and reaches a length of 1 m (3.3 ft).[1][4]

It is dark brown to black with numerous white spots as a juvenile. As the fish matures, the spots become less numerous and smaller, often disappearing entirely in large adults.[1][4] Its close relative A. hystrix always lack white spots, regardless of age.[3][5] In contrast, A. adonis lacks the vermiculated pattern often (but not always) found on the underparts of A. hystrix.[3][5]

References
  1. PlanetCatfish: Acanthicus adonis. Retrieved 17 May 2013
  2. Froese, Rainer and Pauly, Daniel, eds. (2011). "Acanthicus adonis" in FishBase. December 2011 version.
  3. Chamon, C.C. (2016): Redescription of Acanthicus hystrix Agassiz, 1829 (Siluriformes: Loricariidae), with comments on the systematics and distribution of the genus. Zootaxa, 4088 (3): 395–408.
  4. "Acanthicus adonis". SeriouslyFish. Retrieved 31 October 2017.
  5. Chamon, C.C. (2011). "Revisão taxonômica e relações filogenéticas do grupo Acanthicus (Siluriformes, Loricariidae)" (PDF). São Paulo State University. doi:10.11606/T.41.2012.tde-13072012-101458.


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