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Folifer brevifilis (PETERS, 1881)

October 19th, 2014 — 1:33pm

This species is widely-distributed in the Mekong river system in Thailand, Laos, and Vietnam, Salween and Ayeyarwaddy rivers in southern China, Myanmar, and Thailand, plus various smaller basins in Vietnam and China. It has also been recorded from the islands of Hainan and Hong Kong.

Type locality is given as ‘China: sent from Hong Kong’.

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Esomus caudiocellatus AHL, 1924

October 19th, 2014 — 12:31pm

E. caudiocellatus can be told apart from congeners by lacking a dark lateral stripe and possessing a prominent dark marking on the caudal peduncle.

In recent years a number of phylogenetic studies involving Esomus and its near relatives have been conducted and conflicting results published. For example a 2003 study by Fang et al. concluded that the genus is the sister group, i.e., most closely-related to…

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Danionella translucida ROBERTS, 1986

October 18th, 2014 — 5:47pm

The anatomical structure of miniaturised cyprinids can vary greatly; there are two putative groups with some species possessing intermediate features to some degree. The first contains those fishes which though small are essentially proportionally dwarfed versions of their larger relatives.

The other includes those in which anatomical development stops at a point where adult still resemble a larval form of their larger ancestor, as in…

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Crossocheilus burmanicus HORA, 1936

August 25th, 2014 — 3:17pm

We’ve been unable to obtain a diagnosis for this species to date but it can at least be distinguished from those congeners traded as ‘Crossocheilus siamensis’ (an invalid name synonymous with C. oblongus, which is itself of questionable identity), ‘Siamese algae eater’, or ‘SAE’ by the fact that the dark lateral stripe does not extend into the caudal-fin.

Members of Crossocheilus are characterised by…

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Chela cachius (HAMILTON, 1822)

Neon Hatchet Fish

August 24th, 2014 — 7:52pm

It is currently the only valid member of the genus but it is possible that additional taxa exist, particularly in Myanmar, while a number of former species are contained within the Laubuka assemblage, to which C. cachius is closely related. Phylogenetic studies suggest the existence of a monophyletic clade consisting of the genera Devario, Chela, Laubuca, Microdevario and Microrasbora plus the genus Betadevario.

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Abbottina rivularis (BASILEWSKY, 1855)

Chinese False Gudgeon

June 24th, 2014 — 6:58pm

Native to continental China, the Korean peninsula, and southern Japan. Type locality is given only as ‘Lakes and rivers, northern China’, with the type series possibly originating from the Pai-ho River near Beijing.

It has been widely introduced and is considered invasive elsewhere, including the Mekong river basin (records from Laos and Thailand), Salween river (Myanmar), northern Japan, Taiwan, Turkmeni…

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Scleropages inscriptus ROBERTS, 2012

May 17th, 2014 — 1:06pm

This species’ distribution is unclear although individuals from the aquarium trade are said to have been collected in the Tenasserim river basin in Tananthayi Region, southern Myanmar.

Type locality is ‘supposedly from Tananthayi district, Tananthayi River basin, obtained dead from aquarium fish vendor at Meik’.

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Bagarius bagarius (HAMILTON, 1822)

February 15th, 2014 — 12:12pm

There is considerable confusion surrounding the identity of B. bagarius with its name having been widely applied to a relatively small species that is said to reach only 200 mm SL and considered to be common in northern India and much of Indochina.

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Bagarius yarrelli (SYKES, 1839)

Goonch

February 8th, 2014 — 5:49pm

This species is clearly unsuitable for the home aquarium given its eventual size and natural behaviour, and we know of only a handful of private aquarists with the facilities required to house it long-term.

The grouping currently contains four species but is in urgent need of review with a number of additional taxa thought to exist and B. yarrelli possibly representing a synonym of B. bagarius.

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Caelatoglanis zonatus NG & KOTTELAT, 2005

July 29th, 2013 — 4:58pm

Known only from the Ataran River system in Kayin state, Myanmar.

The Ataran forms the headwaters of part of the larger Salween drainage, and some of its tributaries extend across the nearby border into Thailand, where it’s known as the Kasat.

Type locality is ‘Stream ”Chon Son’ between Kyondaw and Phadaw, about 20 kilometers north…

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