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Garra borneensis (VAILLANT, 1902)

October 19th, 2014 — 4:51pm

Substrates are generally composed of gravel, rocks, boulders or bedrock carpeted with a rich biofilm formed by algae and other micro-organisms.

At a habitat in the Mendawai river basin in central Kalimantan, H. borneensis was collected from a foothill stream running swiftly over a rock and gravel substrate with clear water of pH 6.4.

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Crossocheilus cobitis (BLEEKER, 1854)

September 29th, 2014 — 4:56pm

Given its wide natural range it seems logical that this species is or has been available in the aquarium trade, although its correct name may never have been applied.

It is told apart from congeners by the following combination of characters: two pairs of barbels; a continuous midlateral stripe from the tip of the snout to the base of the caudal-fin, with a conspicuous small blotch at the posterior extremity, faintly marked on the caudal-fin; a faint mark between the anus and the anal-fin origin in juveniles; a narrow mouth.

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Gymnochanda filamentosa FRASER-BRUNNER, 1955

June 15th, 2013 — 3:51pm

G. filamentosa has appeared in the ornamental trade but is evidently delicate and therefore recommended only to experienced aquarists.

It can be told apart from congeners by the following combination of characters: possession of filamentous dorsal and anal-fin rays in males; body transparent to translucent yellowish-brown colour in life; absence of a highly-extended second anal-fin spine; absence of carmine-red pigmentation in the dorsal, anal an…

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Homalopteroides stephensoni (HORA, 1932)

March 13th, 2012 — 1:25pm

Tan (2009) redescribed H. stephensoni and it possesses the following unique character set: sub-inferior mouth with thin barbels; five principle, 12-13 secondary pectoral fin rays (usually 12); scaleless belly; pattern of keeled scales on anterior, dorsal portion of body consisting of a single central keel in the posterior third of each scale; 43-50 lateral line…

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Mystacoleucus obtusirostris (VALENCIENNES, 1842)

March 13th, 2012 — 1:23pm

This species is occasionally marketed as ‘Burmese Rainbow Barb’ in the ornamental trade. others may have been exported in small numbers or as bycatch among shipments of other species.

It was referred to as Mystacoleucus marginatus for decades, but that name is a simultaneous subjective synonym of M. obtusirostris following Kottelat (2013).

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Scleropages formosus (M√úLLER & SCHLEGEL, 1840)

Asian Arowana

March 13th, 2012 — 1:22pm

This species is distinguished from its Australian congeners S. jardinii and S. leichardti by possessing a lower number of lateral line scales (21-26 vs 32-36).

It occurs naturally in a number of colour forms of which three were elevated to distinct species status in 2003, but the current majority view is that all represent S. formosus pending a detailed review. Kottelat (2013) mentions that the red form may…

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