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Rasbora tornieri AHL, 1922

March 22nd, 2013 — 9:52am

Type locality is ‘Central Sumatra, Indonesia’, with additional records existing from Cambodia (Mekong drainage), Peninsular Malaysia (Perak River), Sumatra (from the Siak River, Riau province to the Musi River, South Sumatra (Sumatera Selatan) province) and Borneo (south and westwards from the Belait river basin in Brunei Darussalam to the Sambas drainage in West Kalimantan (Kalimantan Barat) province, Indonesia and probably in Sarawak, Malaysia).

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Gastromyzon lepidogaster ROBERTS, 1982

January 9th, 2013 — 1:05pm

This species is variable in terms of colour. Large adults may be bright green, orange or barred but are apparently capable of changing from barred to plain in just a few seconds.

These different forms have been recorded in the same natural habitats, and some individuals also possess prominent nuptial tubercules covering much of the body.

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Homalopteroides weberi (HORA, 1932)

December 20th, 2012 — 12:23pm

An obligate dweller of swiftly-flowing streams and headwaters containing clear, oxygen-saturated water. It often inhabits riffles and runs and is likely to display a preference for shallower zon…

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Brachygobius sabanus INGER, 1958

Sabanus Bumblebee Goby

November 13th, 2012 — 12:01pm

B. sabanus is very similar to B. doriae and these two are easily confused. However in B. doriae most of the first-dorsal-fin and two-thirds of the pectoral-fin are black while in B. sabanus the last one or two rays of the first dorsal-fin are colourless and less than half of the pectoral-fin is black.

In addition there are usually smaller dark ‘saddles’ betw…

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Brachygobius kabiliensis INGER, 1958

Kabili bumblebee goby

November 12th, 2012 — 12:57pm

It can be diagnosed as follows: <30 lateral scales; two black body bands reaching ventral midline posterior to anal-fin; band above anal-fin also reaching ventral midline no black band on head, though the first band may touch the posterior margin of the eye; band above anal-fin not reaching ventral midline; 6 branched anal-fin rays; 7-8 predorsal scales. Brachygobius currently contains 9 described species but is likely to prove more diverse should a review be carried out. Alt…

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Desmopuntius hexazona (WEBER & DE BEAUFORT, 1912)

'Pentazona' Barb

June 28th, 2012 — 1:57pm

Native to parts of southern Borneo, eastern Sumatra, Singapore, and the Malay Peninsula. In Singapore it’s considered highly-endangered and is now restricted to the Central Catchment nature reserve.

Type locality is ‘Tuluk and Gunung Sahilan, Sumatra, Indonesia’ which appears to correspond to localities within the Kampar River drainage of which the former is now known as Teluk Meranti and is o…

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Desmopuntius trifasciatus (KOTTELAT, 1996)

June 19th, 2012 — 4:51pm

This species is one of three similar-looking members of the genus alongside D. johorensis and D. trifasciatus, while it may also be confused with Striuntius lineatus.

Juveniles of all except S. lineatus exhibit a vertically-barred rather than laterally-striped colour pattern, the metamorphosis to adult patterning beginning at around 20 mm SL and normally being complete by 30-40 mm.

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Nemacheilus selangoricus DUNCKER, 1904

May 27th, 2012 — 5:46pm

N. selangoricus is most similar to N. spiniferus since it possesses acuminate scales above and below the lateral line on the caudal peduncle, a feature not shared with any other congener. It can however be distinguished by the following characters: presence of 8-12 very regular dark bars on flanks (vs. 10-13 irregularly-shaped bars in N. spiniferus), 3-5 times…

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Gastromyzon introrsus TAN, 2006

May 17th, 2012 — 10:11pm

The type locality was a fast-flowing, shallow (50 – 80 cm deep) river between 5-10 metres in width with a substrate of gravel and large rocks. PH was measured at 7.7 and the habitat was unshaded with on…

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Betta gladiator TAN & NG, 2005

April 30th, 2012 — 3:39pm

Presumed endemic to the geographically-isolated Maliau basin, a roughly circular plateau enclosed by hills in Sabah state, Malaysia, Borneo. The Maliau River is part of the much larger Kinabantangan watershed, Malaysia’s second longest river.

The type series was collected from heath forest alongside ‘Puntiussealei and Hemibagrus cf. baramensis in acidic water with a pH of 4.2-4.8. Adult individuals were spaced around a metre apa…

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