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Epalzeorhynchos kalopterum (BLEEKER, 1850)

Flying Fox

March 13th, 2012 — 1:19pm

Confusion with similar-looking fishes from other genera, such as Garra cambodgiensis, laterally-striped Crossocheilus spp. or Gyrinocheilus aymonieri is not uncommon, and are largely attributable to the use of trade names such as ‘false flying fox’ or ‘Siamese flying fox’. When compared with the other species E. kalopterus exhibits several unique characters but perhaps the simplest way to identify it is by the characteristic white-edged, red and black coloured fins and the presence of two pairs of barbels.

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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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'Puntius' lineatus (DUNCKER, 1904)

Lined Barb

March 13th, 2012 — 1:19pm

One of four similar-looking, laterally-striped ‘Puntius‘ spp. native to Southeastern Asia alongside ‘P.gemellus, ‘P.johorensis, and ‘P.trifasciatus. Of these ‘P.lineatus is most often confused with ‘P.johorensis by virtue of the fact that these two seem most common in the aquarium trade.

Telling them apart is relatively simple since ‘P.lineatus has 0 – 1 pairs of barbels (vs. 2 pairs in the other three species), juv…

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Barbodes lateristriga (VALENCIENNES, 1842)

Spanner Barb

March 13th, 2012 — 1:19pm

This species is commonly-referred to as ‘T-barb’ in some countries. It’s closely-affiliated with and sometimes traded as the congener B. kuchingensis but that species can be told apart by colour pattern comprising a prominent row of dark spots along the lateral line, plus a short, horizontally-orientated streak extending from the upper part of the operculum. In B. lateristriga the lateral markings usually form a solid stripe and there is no streak extending from the operculum.

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Barbonymus schwanefeldii (BLEEKER, 1854)

Tinfoil barb

March 13th, 2012 — 1:19pm

This is one of two species traded under the vernacular name ‘tinfoil barb’, the other being the less well-known congener B. altus. Despite this it appears that B. altus is just as widely available as B. schwanefeldii and in many cases is seen on sale more regularly. Unfortunately both are usually offered at a small size (usually around 50 – 75 mm) with little to no information regarding the eventual size of the fish.

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Datnioides polota (HAMILTON, 1822)

Silver Tiger Perch

March 13th, 2012 — 1:18pm

D. polota is sometimes referred to as D. quadrifasciatus (Sevastianov, 1809) but the original name of the latter, Chaetodon quadrifasciatus Sevastianov, 1809, is a junior primary homonym of the older Chaetodon quadrifasciatus Bloch & Schneider 1801, thus Coius polota Hamilton, 1822 takes precedence.

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Channa micropeltes (CUVIER, 1831)

Giant Snakehead

March 13th, 2012 — 1:18pm

C. micropeltes is also referred to as ‘Indonesian’, ‘red’, or ‘redline’ snakehead, the latter names in reference to the appearance of juveniles which often appear in the ornamental trade despite its unsuitability for home aquaria. It is somewhat hyperbolised in the media as a fearsome, invasive “monster” fish with a reputation for killing more fish than it can eat, and even the occasional human, although in reality…

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Datnioides microlepis BLEEKER, 1854

Indonesian Tiger Perch

March 13th, 2012 — 1:18pm

In aquarium literature this species is also referred to as ‘fine scaled tiger fish’, ‘Indonesian tiger fish’, ‘Sumatran tiger fish’, ‘Indo datnoid’, and ‘Indo dat’. The common name of ‘tiger fish’ is also used in reference to the African alestid genus Hydrocynus, and the more appropriate ‘tiger perch’ was suggested by Roberts and Kottelat (1994).

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Trichopsis vittata (CUVIER, IN CUVIER & VALENCIENNES, 1831)

Croaking gourami

March 13th, 2012 — 1:18pm

The common name is derived from the ability of genus members to produce audible sounds via a specialised pectoral mechanism which is unique within the family Osphronemidae. The structure comprises modified pectoral-fin tendons and muscles which are stretched and plucked by basal elevations of two fin rays in a similar way to guitar strings via rapid beating of the fins. The pectoral-fins beat alternately, each able to generate short or long bursts of sound. These sounds are produced by both sexes, predom…

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Betta pi TAN, 1998

March 13th, 2012 — 1:18pm

B. pi is included in the Betta waseri group of closely-related species within the genus, an assemblage within which members share the following combination of characters: base body colouration clay yellow; opercle scales iridescent gold in mature males of all species except B. tomi; throat with black markings which join with black lower jaw in some species; no chin bar.

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