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Danios

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Danios

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Danionins
Danio rerio  zebra danio
 
Danio rerio zebra danio
Scientific classification
Kingdom: Animalia
 
Phylum: Chordata
 
Class: Actinopterygii
 
Order: Cypriniformes
 
Family: Cyprinidae
 
Subfamily: Danioninae
 
Genus: Chela, Danio, Danionella, Devario, Esomus, Inlecypris, Microrasbora, Parachela, Sundadanio.
 
Species of Danionin
Danio
Danio albolineatus
Danio abolineatus var pulcher
Danio abolineatus var tweediei
Danio choprae
Danio dangila
Danio feegradei
Danio kerri
Danio kyathit var spotted
Danio kyathit var striped
Danio meghalayensis
Danio nigrofasciatus
Danio roseus
Danio rerio
Danio rerio var frankei
Danio sp "Hikari"
Danio sp aff kyathit
Danio sp "KP01"
Danio sp "TW01"
Danio sp "TW02"
Danio sp "TW03"

Danionella
Danionella mirifica
Danionella translucifida

Devario
Devario acrostomus
Devario acuticephala
Devario aequipinnatus
Devario affinis
Devario annandalei
Devario apogon
Devario apopyris
Devario assamensis
Devario browni
Devario chrysotaeniatus
Devario devario
Devario fangfangae
Devario fraseri
Devario gibber
Devario horai
Devario interruptus
Devario kakhienensis
Devario laoensis
Devario leptos
Devario manipurensis
Devario Maetangensis
Devario malabaricus
Devario naganensis
Devario neilgherriensis
Devario pathirana
Devario peninsulae
Devario quangbinhensis
Devario regina
Devario salmonata
Devario shanensis
Devario sondhii
Devario spinosus
Devario strigillifer
Devario suvatti
Devario yuensis
Devario sp "Broken Line"

Chela
Chela cachius
Chela caeruleostigmata
Chela dadiburjori
Chela fasciata
Chela laubuca
Chela maassi

Esomus
Esomus ahli
Esomus altus
Esomus barbatus
Esomus caudiocellatus
Esomus danricus
Esomus lineatus
Esomus longimanus
Esomus malabaricus
Esomus malayensis
Esomus manipurensis
Esomus metallicus
Esomus thermoicos

Inlecypris
Inlecypris jayarami
Inlecypris auropurpurea

Microrasbora
Microrasbora erythromicron
Microrasbora gatesi
Microrasbora kubotai
Microrasbora nana
Microrasbora rubescens
Microrasbora sp "galaxy"

Parachela
Parachela cyanea
Parachela hypophthalmus
Parachela ingerkongi
Parachela maculicauda
Parachela oxygastroides - Glass Fish
Parachela siamensis
Parachela williaminae

Sundadanio
Sundadanio axelrodi
Tanichthys (not strictly a danionin)
Tanichthys albonubes
Tanichthys micagemmae

The Danionins are small minnow-type fish belonging to the family Cyprinidae, mostly in the genera Danio and Devario (Some species were previously in the genus formerly known as Brachydanio). They are native to the fresh waters of southeast Asia, but many species are brightly coloured, and are available as aquarium fish worldwide. Danios tend to have horizontal stripes and long barbels, Devarios tend to have vertical bars and short rudimentary barbels, if barbels are present at all. A number of the species have only been recently discovered, in remote inland areas of Laos and Myanmar and do not yet have scientific names. The phrase Danionins is used to describe all the Danio species which include fish within the genera Danio, Devario, Chela, Esomus, Inlecypris, Parachela and probably also Danionella, Microrasbora and Sundadanio. Tanichthys is often regarded as a Danionin however there is no scientific basis for this. The Danionins can be classed as a subfamily Danioninae which is increasingly gaining credibility as a distinct subfamily from Rasboriniae within the Cyprinidae family.

All Danionins are egg scatters and breed in the rainy season in the wild. They are generally active swimmers occupying the top half of a tank and are carnivores, living on insects and small crustaceans in the wild, although they will eat just about any type of aquarium food. They will not, however, generally eat plants or algae.

Although boisterous and liable to chase each other and other fish, they are good community fish and will not generally attack each other or other fish, although they occasionally nip fins, more by accident than design and will, like most fish, eat eggs and any fish small enough to fit into their mouths.

They are best kept in a tank long enough for their active swimming, preferably with a current from a power filter (or at least airstone) as they often live in fast flowing streams in the wild. Generally this also results in them being sub tropical with temperatures of 20 to 22 degrees Celsius (low seventies degrees Fahrenheit) often being fine, however they are good jumpers and a tight fitting lid is recommended.

Contents

Common names given to Danionin species

Since 2004 many new Danionins have been discovered which do not yet have scientific names and many other species, previously known only to the scientific fraternity have become available in Aquarist Shops. This has predictably led to total confusion as to the naming of some fish, with some species having up to five different common names in use and some common names bein used for up to four different species. As a result all Danionin common names known to be in use are listed on a separate page:

Species, listed in order of scientific name, categorised by genus

Danios

The species remaining in the Danio genus comprise most of the Danionins familiar to aquarists. They have two pairs of long barbels and are generally characterised by horizontal stripes (with the exception of the Glowlight Danio and Black Barred Danio which have vertical bars. In size they range from 4 cm/ 1.75 in) to 15 cm/ 6 in).

Frequently used common names are given for reference, however if the common name you are looking for does not appear, click on it on the section above for more details

  • Danio albolineatus - Pearl Danio -(6 cm/ 2.5 in)
    Danio abolineatus var pulcher - Blue-Redstripe Danio - (5 cm/ 2 in)
    Danio abolineatus var tweediei - Kedah Danio - (5 cm/ 2 in)
    Danio choprae - Glowlight Danio - (4 cm/ 1.25 in)
    Danio dangila - Moustached danio - (15 cm/ 6 in)
    Danio feegradei - Yoma Danio - (8 cm/ 3 in)
    Danio kerri - Blue Danio - (5 cm/ 2 in)
    Danio kyathit var spotted - Ocelot Danio - (6 cm/ 2.5 in)
    Danio kyathit var striped - Orange Finned Zebra Danio - (6 cm/ 2.5 in)
    Danio meghalayensis - Meghalaya Danio - (9 cm/ 4 in)
    Danio nigrofasciatus - Spotted Danio - (4 cm/ 1.25 in)
    Danio roseus - Rose Danio - (6cm/ 2.5 in)
    Danio rerio - Zebra danio -(6 cm/ 2.5 in)
    Danio rerio var frankei - Leopard Danio -(6 cm/ 2.5 in)
    Danio sp "Hikari" - Hikari Danio - (5 cm/ 2 in)
    Danio sp aff kyathit - Redfin Danio - (6 cm/ 2.5 in)
    Danio sp "KP01" - Burma Zebra Danio - (9 cm/ 3 in)
    Danio sp "TW01" - Black Barred Danio - (8 cm/ 3 in)
    Danio sp "TW02" - Burma Danio - (4 cm/ 1.25 in)
    Danio sp "TW03" - Panther Danio - (5 cm/ 2 in)

Devarios

The Devarios comprise some Danionins familiar to aquarists. Generally (but not all) larger fish than Danios, they have short barbels (if present at all) and generally have deeper bodies than Danios with species having vertical stripes present (as well as horizontal). In size they range from 5 cm/ 2 in) to 15 cm/ 6 in).

  • Devario aequipinnatus - Giant Danio - (15 cm/ 6 in)
    Devario affinis - False Giant Danio - (15 cm/ 6 in)
    Devario apogon
    Devario assamensis - Red Mirik Danio - (15 cm/ 6 in)
    Devario annandalei - Annandale's Giant Danio - (15 cm/ 6 in)
    Devario browni - Browns Danio (8 cm/ 3.5 in)
    Devario chrysotaeniatus Gold Striped Danio - (8 cm/ 3 in)
    Devario devario - Bengal Danio or Sind Danio (15 cm/ 6 in)
    Devario interruptus
    Devario Maetangensis - Fire Bar Danio - (7 cm/ 2.75 in)
    Devario laoensis - Laos Giant Danio (8 cm/ 3 in)
    Devario malabaricus - Malabar Danio - (15 cm/ 6 in)
    Devario pathirana - Barred Danio - (6 cm/ 2 in)
    Devario regina - Queen Danio - (13 cm/ 5 in)
    Devario shanensis - Shan Danio (7 cm/ 2.75 in)
    Devario strigillifer
    Devario sp "Broken Line" - Blue Moon Danio - (15 cm/ 6 in)

Little known Devarios

Little is known about the following Devario species, however there is some information about them at the Fishbase Devario index(Fishbase: Ed. Ranier Froese and Daniel Pauly. July 2005 version)

  • Devario acrostomus
    Devario acuticephala - Sharp Headed Danio
    Devario apopyris
    Devario fangfangae
    Devario fraseri - Fraser's Danio
    Devario gibber
    Devario horai
    Devario kakhienensis - Kakhyen Hills Danio
    Devario leptos
    Devario manipurensis
    Devario naganensis - Naga Hills Danio
    Devario neilgherriensis - Neilgherry Hills Giant Danio
    Devario peninsulae
    Devario quangbinhensis
    Devario salmonata
    Devario sondhii - Sondhi's Danio
    Devario spinosus
    Devario suvatti
    Devario yuensis

Tanichthys

Not strictly speaking a Danionin but widely regarded as one, this genus has its own Wikipedia page. Click on Tanichthys for more information about these fish.

  • Tanichthys albonubes - White Cloud Mountain Minnow - (6 cm/ 2 in)
    Tanichthys micagemmae - Vietnamese Cardinal Minnow - (5 cm/ 1.75 in)

Esomus

A genus comprising the Flying Barbs, they are closely related to the Danio genus and are distinctive for their extremely long barbels.

  • Esomus ahli
    Esomus altus
    Esomus barbatus - South Indian Flying Barb
    Esomus caudiocellatus
    Esomus danricus - Indian Flying Barb
    Esomus lineatus - Striped Flying Barb
    Esomus longimanus - Mekong Flying Barb
    Esomus malabaricus
    Esomus malayensis - Malayan Flying Barb
    Esomus manipurensis
    Esomus metallicus - Striped Flying Barb
    Esomus thermoicos

Chela

A closly related genus to Devario

  • Chela cachius - Neon Hatchet Fish
    Chela caeruleostigmata - Leaping Barb
    Chela dadiburjori - Dadio
    Chela fasciata
    Chela laubuca - Indian Glass Barb
    Chela maassi

Parachela

Closely related to Chela and Devario

  • Parachela cyanea
    Parachela hypophthalmus
    Parachela ingerkongi
    Parachela maculicauda
    Parachela oxygastroides - Glass Fish
    Parachela siamensis
    Parachela williaminae

Inlecypris

A genus closely related to Devario comprising two smallish barred fish from Lake Inle in Myanmar.

  • Inlecypris jayarami
    Inlecypris auropurpurea

Other Danionin genera

The following genera of tiny fish are thought to be Danionins closely related to Danio and Esomus, but too little is known about them to confirm this.

Danionella

A genus comprising two tiny, recently discovered fish, Danionella translucida is the smallest known freshwater fish

  • Danionella mirifica (1.4 cm/ 0.75 in)
    Danionella translucida (1.1 cm/ 0.5 in)
    Several other as yet unnamed Danionella species have very recently been discovered.

Microrasbora

The genus name means "small Rasbora", however these fish appear to be more closely related to the danios than rasboras. There has been speculation that Microrasbora erythromicron may be transferred to the Danio genus but this now seems unlikely

  • Microrasbora erythromicron
    Microrasbora gatesi
    Microrasbora kubotai
    Microrasbora nana
    Microrasbora rubescens
    Microrasbora sp "galaxy" - Galaxy Rasbora

Sundadanio

A genus with only one fish within, the genus was created after the axelrodi species was transferred from the Rasbora. Axelrodi resembles a tiny Rasbora

  • Sundadanio axelrodi

Danionins renamed or wrongly identified

  • The following genera that previously described certain danionins are no longer valid:
    • Allodanio
    • Brachydanio
    • Danioides
    • Daniops
    • Eustira
    • Parabarilius
    • Paradanio
    • Rambaibarnia

 

  • All Devario species were formerly in the genus Danio. In addition Devario acuticephala, Devario shanensis and Devario sondhii were also regarded at one time as being in the former genus Brachydanio

 

  • Certain fish were formerly described within Danionin genera and subsequently moved to their correct genus. Where such fish were moved to the genus: Achielognargus, Acanthorhodeus, Barilius, Opsarius, Oxygaster, Paralaubuca, Rhodeus, Salmostoma & Securicula, such fish are not now deemed to be Danionins.

 

  • Allodanio ponticulus, now renamed Barilius ponticulus

 

  • Aphyocypris pooni, "Garnet", now deemed a synonym of Tanichthys albonubes (White Cloud Mountain Minnow)

 

  • Brachydanio acuticephala, now renamed Devario acuticephala
    Brachydanio albolineatus, , now renamed Danio albolineatus (Pearl Danio)
    Brachydanio choprae, now renamed Danio choprai (Glowlight Danio)
    Brachydanio frankei, now deemed a subspecies of Danio rerio (Danio rerio var frankei)
    Brachydanio jayarami, now renamed Inlecypris jayarami
    Brachydanio kerri, now renamed Danio kerri (Blue danio)
    Brachydanio nigrofasciatus, now renamed Danio nigrofasciatus (Spotted Danio),
    Brachydanio pulcher, now deemed a subspecies of Danio albolineatus (Danio abolineatus var pulcher)
    Brachydanio rerio, now renamed Danio rerio (Zebra Danio),
    Brachydanio shanensis, now renamed Devario shanensis
    Brachydanio sondhii, now renamed Devario sondhii
    Brachydanio tweediei, now deemed a subspecies of Danio albolineatus (Danio abolineatus var tweediei)

 

  • Danio aeqipinnulus, now deemed a synonym of Devario aequipinnatus (Giant Danio)
    Danio albolineata, now deemed a synonym of Danio albolineatus (Pearl Danio)
    Danio analipunctatus, now deemed a synonym of Danio nigrofasciatus (Spotted Danio)
    Danio deyi, now deemed a synonym of Danio dangila (Moustached Danio)
    Danio interrupta, now deemed a synonym of Devario interruptus
    Danio jayarami, now renamed Inlecypris jayarami
    Danio lineatus, now deemed a synonym of Danio rerio (Zebra Danio)
    Danio lineolatus, now deemed a synonym of Devario aequipinnatus (Giant Danio)
    Danio menglaensis, now renamed Opsarius koratensis
    Danio menoni, now renamed Chela laubuca
    Danio micronema, now deemed a synonym of Devario malabaricus (Malabar Danio)
    Danio monshiensis, now renamed Barilius monshiensis,
    Danio ponticulus, now renamed Barilius ponticulus
    Danio rheinarddti, now renamed Rhodeus rheinardti
    Danio salmonatus, now deemed a synonym of Devario salmonata
    Danio stoliczae, now deemed a synonym of Danio albolineatus (Pearl Danio)

 

  • Daniops myersi, now renamed Devario laoensis

 

  • Devario chankaeinsis, Khanka Spiny Bitterling, now renamed Achielognargus chankaeinsis
    Devario asmussii Russian Bitterling, now renamed Acanthorhodeus Asmussii

 

  • Chela anastoma, now deemed a synonym of Chela cachius
    Chela anomalurus, now renamed Oxygaster anomalura
    Chela argentea, now deemed a synonym of Salmostoma acinaces
    Chela atpar, now deemed a synonym of Chela cachius
    Chela bacaila, now renamed Salmostoma bacaila
    Chela barroni, now renamed Paralaubuca barroni
    Chela boopis, now deemed a synonym of Salmostoma boopis
    Chela clupeoides, now deemed a synonym of Salmostoma balokee
    Chela dadidurjori, now deemed a synonym of Chela dadiburjori
    Chela dadyburjori, now deemed a synonym of Chela dadiburjori
    Chela dadydurjori, now deemed a synonym of Chela dadiburjori
    Chela diffusa, now deemed a synonym of Salmostoma acinaces
    Chela fasciatus, now deemed a synonym of Chela fasciata
    Chela horai, now renamed Salmostoma horai
    Chela hypophthalmus, now renamed Chela hypophthalmus
    Chela gora, now renamed Securicula gora
    Chela johorensis, now deemed a synonym of Parachela oxygastroides
    Chela maassi, now deemed a synonym of Chela maasi
    Chela maculicauda, now renamed Parachela maculicauda
    Chela megalolepsis, now deemed a synonym of Parachela oxygastroides
    Chela mouhoti, now deemed a synonym of Chela caeruleostigmata
    Chela nicholsi, now deemed a synonym of Paralaubuca sinensis
    Chela oxygaster, now deemed a synonym of Oxygaster anomalura
    Chela oxygastroides', now deemed a synonym of Parachela oxygastroides
    Chela panjabensis, now deemed a synonym of Salmostoma punjabensis
    Chela phulo, now renamed Salmostoma phulo
    Chela punjabensis, now renamed Salmostoma punjabensis
    Chela pointoni, now renamed Oxygaster pointoni
    Chela quangbinhensis, now renamed Devario quangbinhensis
    Chela sardinella, now renamed Salmostoma sardinella
    Chela siamensis, now renamed Parachela siamensis
    Chela sladoni, now renamed Salmostoma sladoni
    Chela stigmabrachium, now renamed Paralaubuca stigmabrachium
    Chela teekanee, now deemed a synonym of Salmostoma balokee
    Chela untrahi, now renamed Salmostoma untrahi

 

  • Inlecypris auropurpureus, now renamed Inlecypris auropurpurea

See also

  • Carp - fellow cyprinids

External links

References


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This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.


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