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Epalzeorhynchos bicolor (SMITH, 1931)

Red-Tailed Black Shark

March 13th, 2012 — 1:19pm

Most members of Epalzeorhynchos were formerly regarded as Labeo spp. and are thus referred to as such in older literature. According to Rainboth (1996) they’re characterised by absence of a dorsal spine, possession of 10-13 branched dorsal fin rays, a thin membrane connecting the upper and lower lips and rigid, freely moveable rostral lobes.

Epalzeorhynchos itself has undergone some quite recent changes with a handful of species hav…

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Crossocheilus langei BLEEKER, 1860

Siamese Algae Eater

March 13th, 2012 — 1:19pm

C. oblongus is another name widely misused in the trade but that species has seemingly never been exported and was described as a blueish fish with yellow fins. It’s native to streams of Gunung Salak mountain in Bogor Regency, West Java, Indonesia where collecting of ornamental fishes is almost non-existent. Other species of laterally-striped Crossocheilus also exist and may be available from time-to-time but are more easily told apart from the group described above.

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Myxocyprinus asiaticus (BLEEKER, 1864)

Chinese Sailfin Sucker

March 13th, 2012 — 1:19pm

This species is traded under various names including ‘Chinese banded shark’, ‘Chinese sucker’, ‘freshwater batfish’, ‘high-fin banded loach’, etc. It’s currently illegal to import or own privately in several countries, including the UK, but continues to be available with only the attractive juvenile form traded, and almost always without information regarding adult size of almost a metre or potential lifepan of 25 years+.

Myxocyprinus is a monotypic genus and the only Asian representative of the family Cato…

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Brachydanio nigrofasciata (DAY, 1870)

Dwarf Spotted 'Danio'

March 13th, 2012 — 1:19pm

The genus Danio contains only the type species, D. dangila, separated on the basis of its larger size and the shape of the caudal-fin, which in adults is only slightly emarginate or even truncate in shape, a feature it shares only with Tinca tinca (the common tench) among other cyprinids.

The remaining species, of which B. rerio is thought to be the most ancient, are included in the revalidated genus Brachydanio Weber & de Beaufort, 1916.

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Devario devario (HAMILTON, 1822)

Bengal Danio

March 13th, 2012 — 1:19pm

Ecological studies have revealed this species to be more of a generalist than its chiefly insectivorous congeners.

Aquatic and terrestrial insects form a significant proportion of the diet, but substantial amounts of filamentous algae and diatoms are consumed with water mites, fish scales, isopods, nematodes and detritus also taken occasionally.

In the aquarium it’s largely unfu…

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Brachydanio rerio (HAMILTON, 1822)

Zebra 'Danio'

March 13th, 2012 — 1:19pm

This species is very peaceful indeed and can be combined with many of the most popular fish in the hobby including other small cyprinids as well as tetras, livebearers, rainbowfishes, anabantoids, catfishes and loaches.

As always when selecting a compatible community of…

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Brachydanio kerri (SMITH, 1931)

Blue 'Danio'

March 13th, 2012 — 1:19pm

Can be hard to find in aquarium shops, and there has been some confusion surrounding its identity in the past.

Base body colour is either powdery-blue or yellow-green (see ‘Distribution’) and this continues into the caudal-fin, while pinkish-yellow lateral stripes extend from opercle to caudal peduncle.

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Brachydanio albolineata (BLYTH, 1860)

Pearl 'Danio'

March 13th, 2012 — 1:19pm

Doubts remain whether B. albolineata is representative of a single species or a group of similarly-patterned, closely-related fish, and the form from Chantaburi province in eastern Thailand was revalidated as B. pulchra (formerly Danio pulcher Smith, 1931) by Kottelat (2013). The status of the currently invalid Danio tweedei (Brittan, 1955) from Kedah state, northern Peninsular Malaysia may also be in question, since fish from that area are clearly…

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Clypeobarbus congicus (BOULENGER, 1899)

Congo Barb

March 13th, 2012 — 1:19pm

Clypeobarbus was originally put forward as a subgenus of Barbus by Fowler in 1936 on the basis that member species possessed a midlateral row of enlarged, shield-like scales but he only included the type species ‘Barbuskemoensis (now a junior synonym of Clypeobarbus pleuropholis) in the group. Subsequent work by Poll and Lambert (1961), Jubb (1965) and Skelton (1993) resulted in several additional species being placed into the grouping although it appears that little of this work was widely-recognised until the recent study was published.

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Barbodes everetti (BOULENGER, 1894)

March 13th, 2012 — 1:19pm

This species is uncommon in the aquarium hobby, although the scientific name is widely misapplied to Barbodes dunckeri, a similar-looking species native to Peninsular Malaysia and Singapore commonly referred to as ‘clown barb’ and labelled as B. everetti in the majority of available literature. The two are quite easy to tell apart, with B. everetti an overall less…

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