Danio

Danio is a genus of small freshwater fish in the family Cyprinidae found in South and Southeast Asia, commonly kept in aquaria.[1] They are generally characterised by a pattern of horizontal stripes, rows of spots or vertical bars.[1] Some species have two pairs of long barbels. Species of this genus consume various small aquatic insects, crustaceans and worms.

Danio
Zebrafish, (Danio rerio)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Danioninae
Genus: Danio
F. Hamilton, 1822
Type species
Cyprinus (Danio) dangila
Hamilton, 1822
Synonyms

Brachydanio Weber & de Beaufort, 1916
Celestichthys Roberts, 2007

Taxonomy

The name "danio" comes from the Bangla name dhani, meaning "of the rice field". Danio was described in the early 19th century by Francis Hamilton. Two of the species included by him in the genus, still remain valid—D. dangila and D. rerio. About a century later (1916) and with many more species described in the meantime, the genus was split; the larger species into Danio and the smaller species into the genus Brachydanio.[2] In 1991, though, the two genera were recombined; most larger species formerly within the genus Danio have now been reclassified into the genus Devario. Also, Brachydanio is now a junior synonym of Danio.[3]

Species

There are currently 27 recognized species in this genus:[1]

References
  1. Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Danio in FishBase. March 2017 version.
  2. Spence, R., Gerlach, G., Lawrence, C. & Smith, C. (2007): The behaviour and ecology of the zebrafish, Danio rerio. Biological Reviews, 83 (1): 13–34.
  3. Fang, F. (2003): Phylogenetic Analysis of the Asian Cyprinid Genus Danio (Teleostei, Cyprinidae). Copeia, 2003 (4): 714–728.
  4. Kullander, S.O. & Britz, R. (2015): Description of Danio absconditus, new species, and redescription of Danio feegradei (Teleostei: Cyprinidae), from the Rakhine Yoma hotspot in south-western Myanmar. Zootaxa, 3948 (2): 233–247.
  5. Kullander, S.O., Rahman, M.M., Norén, M. & Mollah, A.R. (2015): Danio annulosus, a new species of chain Danio from the Shuvolong Falls in Bangladesh (Teleostei: Cyprinidae: Danioninae). Zootaxa, 3994 (1): 53–68.
  6. Kullander, S.O. (2015): Taxonomy of chain Danio, an Indo-Myanmar species assemblage, with descriptions of four new species (Teleostei: Cyprinidae). Ichthyological Exploration of Freshwaters, 25 (4): 357–380.
  7. Kullander, S.O. (2012): Description of Danio flagrans, and redescription of D. choprae, two closely related species from the Ayeyarwaddy River drainage in northern Myanmar (Teleostei: Cyprinidae). Ichthyological Exploration of Freshwaters, 23 (3): 245–262.
  8. Kullander, S.O. & Norén, M. (2016): Danio htamanthinus (Teleostei: Cyprinidae), a new species of miniature cyprinid fish from the Chindwin River in Myanmar. Zootaxa, 4178 (4): 535-546.
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