{{Short description|Genus of ray-finned fishes}} {{Automatic taxobox | image = Kerabat Ikan Zebra.jpg | image_upright = 1.2 | image_caption = Celestial pearl danio (''D. margaritatus''), emerald dwarf rasbora (''D. erythromicron''), glowlight danio (''D. choprae''), ''D.'' aff. ''albolineatus'', Gold-ring danio (''D. tinwini''), dwarf danio (''D. nigrofasciatus''), ''D.'' aff. ''kyathit''(''D. quagga''), ''D. kyathit'', panther danio (''D. aesculapii'') | taxon = Danio | authority = F. Hamilton, 1822 | type_species = ''Cyprinus (Danio) dangila'' | type_species_authority = Hamilton, 1822 | synonyms = * ''Brachydanio'' <small>Weber & de Beaufort, 1916</small> * ''Celestichthys'' <small>Roberts, 2007</small> | synonyms_ref = <ref name = "Cof family">{{Cof family|family=Danioniae|access-date=13 February 2025}}</ref> }}
'''''Danio''''' is a genus of small freshwater fish in the family Danionidae found in South and Southeast Asia, commonly kept in aquaria.<ref name=fishbase>{{FishBase genus|genus=Danio|month=March|year=2017}}</ref> They are generally characterised by a pattern of horizontal stripes, rows of spots or vertical bars.<ref name=fishbase/> Some species have two pairs of long barbels. Species of this genus consume various small aquatic insects, crustaceans and worms.
==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''.<ref name=Spence2007>Spence, R., Gerlach, G., Lawrence, C. & Smith, C. (2007): [http://darchive.mblwhoilibrary.org/bitstream/handle/1912/2698/Spence%20et%20al%20zebrafish%20final%20draft_combined.pdf The behaviour and ecology of the zebrafish, ''Danio rerio''.] ''Biological Reviews'', 83 (1): 13–34.</ref> 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''.<ref name=Fang2003>Fang, F. (2003): [http://www.bioone.org/doi/abs/10.1643/IA03-131.1 Phylogenetic Analysis of the Asian Cyprinid Genus ''Danio'' (Teleostei, Cyprinidae).] ''Copeia'', 2003 (4): 714–728.</ref>
==Species== These are the currently recognized species in this genus:<ref name="Cof genus">{{Cof genus|genus=Danio|access-date=15 February 2025}}</ref> [[File:Danio dangila (cropped).jpg|left|thumb|Moustached danio (''D. dangila'')]] [[File:Danio jaintianensis (cropped).jpg|left|thumb|''D. jaintianensis'']] [[File:Danio kerri (cropped).jpg|left|thumb|Blue danio (''D. kerri'')]] [[File:Danio meghalayensis (cropped).jpg|left|thumb|Meghalaya danio (''D. meghalayensis'')]] [[File:Zebradanio-P1219668 (cropped).jpg|thumb|Zebra danio (''D. rerio'')|left]] [[File:Danio roseus (cropped).jpg|left|thumb|Rose danio (''D. roseus'')]] [[File:Danio sysphigmatus (cropped).jpg|thumb|(''D. sysphigmatus'')]] * ''Danio absconditus'' <small>Kullander & Britz, 2015</small> (Black-barred danio) * ''Danio aesculapii'' <small>Kullander & F. Fang, 2009</small> (Panther danio) * ''Danio albolineatus'' <small>(Blyth, 1860)</small> (Pearl danio) * ''Danio annulosus'' <small>Kullander, Rahman, Norén & Mollah, 2015</small> * ''Danio assamila'' <small>Kullander, 2015</small> * ''Danio catenatus'' <small>Kullander, 2015</small> * ''Danio choprae'' <small>Hora, 1928</small> (Glowlight danio) * ''Danio concatenatus'' <small>Kullander, 2015</small> * ''Danio dangila'' <small>(Hamilton, 1822)</small> * ''Danio dichromatus'' <small>Britz & Kullander, 2024</small> * ''Danio erythromicron'' <small>(Annandale, 1918)</small> * ''Danio feegradei'' <small>Hora, 1937</small> (Yoma danio) * ''Danio flagrans'' <small>Kullander, 2012</small> * ''Danio htamanthinus'' <small>Kullander & Norén, 2016</small> * ''Danio jaintianensis'' <small>(N. Sen, 2007)</small> * ''Danio kerri'' <small>H. M. Smith, 1931</small> (Blue danio) * ''Danio kyathit'' <small>F. Fang, 1998</small> * ''Danio margaritatus'' <small>(Roberts, 2007)</small> * ''Danio meghalayensis'' <small>Sen & S. C. Dey, 1985</small> (Meghalaya danio) * ''Danio nigrofasciatus'' (Day, 1870) (Spotted danio) * ''Danio pulcher'' <small>H. M. Smith, 1931</small> * ''Danio quagga'' <small>Kullander, T. Y. Liao & F. Fang, 2009</small> * ''Danio rerio'' <small>(Hamilton, 1822)</small> (Zebrafish) * ''Danio roseus'' <small>F. Fang & Kottelat, 2000</small> (Rose danio) * ''Danio sysphigmatus'' <small>Kullander, 2015</small> * ''Danio tinwini'' <small>Kullander & F. Fang, 2009</small> * ''Danio tweediei'' <small>Brittan, 1956</small>
==References== {{Reflist}}
{{Taxonbar|from=Q901804}} {{Authority control}}
Category:Danio Category:Fish of Southeast Asia Category:Fish of South Asia Category:Taxa named by Francis Buchanan-Hamilton