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).
Comment » | Category: Cypriniformes, Rasboras & relatives
March 13th, 2012 — 1:24pm
Known only from southern (peninsular) Thailand with the type series originating from a swamp some 83 km north of Surat Thani city, Surat Thani province. It’s been recorded at additional locations, all within the lower Tapi river drainage on the Gulf of Thailand slope of the Malay Peninsula. In the description Conway and Kottelat (2011) report the occurence of a similar-looking, possibly conspecific fish on the Andaman Sea side of the Peninsula, close to Trang province.
1 comment » | Category: Cypriniformes, Rasboras & relatives
March 13th, 2012 — 1:24pm
The anatomical structure of miniaturised cyprinids can vary greatly, and there are two principle ‘groupings’ 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, e.g., Barboides, Microdevario, Microrasbora, Horadandia, Boraras, Sawbwa, Sundadanio, Danio, Laubuca and Rasbora.
The other includes those in which anatom…
2 comments » | Category: Cypriniformes, Rasboras & relatives
March 13th, 2012 — 1:24pm
T. somphongsi is exceptionally rare both in nature and the hobby and was considered potentially extinct for around a dozen years before a trio were imported to Germany as contaminants among a batch of Boraras urophthalmoides in 2006.
Since then it has been successfully bred and distributed to various experts, mostly in Thailand and Germany, in the hope of establishing a sustainable captive population. The possibility of a…
1 comment » | Category: Cypriniformes, Rasboras & relatives
March 13th, 2012 — 1:24pm
The identity of this species was unclear for a number of decades prior to its redescription by Ng and Kottelat (2013).
The confusion originated with Brittan (1954) who misidentified specimens of R. tornieri as R. dusonensis and was exacerbated by Alfred (1963) who concluded that the holotype of R. dusonensis was conspecific with R. myersi.
Comment » | Category: Cypriniformes, Rasboras & relatives
March 13th, 2012 — 1:24pm
This species was described from ‘Johore River, Segamat, Malaysia’, which corresponds to Segamat District within the the Johor River watershed, Johor state, southern Peninsular Malaysia, but the type specimens were obtained via a Singapore wholesaler so it’s possible that a mistake was made as there exist no other records of the species in Peninsular Malaysia.
It’s also been recorded from the Kapuas drainage…
Comment » | Category: Cypriniformes, Rasboras & relatives
March 13th, 2012 — 1:24pm
This species occurs in several colour forms depending on collection locality with some exhibiting more intense pigmentation in the fins or an additional reddish lateral stripe, for example. It’s sometimes said to closely resemble and occur sympatrically with Rasbora agilis, but that name is currently considered a junior synonym of the congener Trigonopoma pauciperforatum.
R. agilis had previously been us…
Comment » | Category: Cypriniformes, Rasboras & relatives
March 13th, 2012 — 1:23pm
T. hengeli is sometimes seen for sale with the trade name of ‘glowlight rasbora’ due to the distinctive orange patterning on the posterior part of the body but we’ve refrained from using that name here because it’s also commonly applied to Trigonopoma pauciperforatum.
It can be confused with the similar-looking T. heteromorpha and T. espei although on close inspection they’re actually quite easy to tell…
Comment » | Category: Cypriniformes, Rasboras & relatives
Lambchop Rasbora
March 13th, 2012 — 1:23pm
This species is very peaceful indeed making it an ideal resident of the well-maintained community tank. As it places no extreme demands in terms of water chemistry it can be combined with many of the most popular fish in the hobby including other small cyprinids as well as tetras, livebearers, dwarf cichlids, catfishes, and loaches. As always when selecting a compatible community of fish thorough research is essential and its small adult size must be a consideration, however.
2 comments » | Category: Cypriniformes, Rasboras & relatives
Fire Rasbora
March 13th, 2012 — 1:23pm
These are still regarded as valid by some authorities although it’s widely accepted that they represent variants of R. vaterifloris due to a lack of type material hindering conclusive study. Rasboroides nigromarginata (Meinken, 1956) has also been used to refer to a reddish form in which males differ from other populations in possessing dark fin margins, but the name is currently considered synonymous with R. vaterifloris by most sources despite the fish being rediscovered in 2010.
Comment » | Category: Cypriniformes, Rasboras & relatives
Aphyosemion rectogoense
Many thanks cyprin, the image has now been removed.
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