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Batasio feruminatus NG & KOTTELAT, 2008

April 19th, 2012 — 2:38pm

Batasio spp. are obligate inhabitants of headwater streams and the upper reaches of smaller rivers characterised by shallow, fast-flowing, highly-oxygenated stretches of riffles and runs broken up by pools or cascades in some cases. Images of the Ataran correspondingly depict flowing sections of forest-shaded, seemingly well-oxygenated headwaters containing clear water, a mixed sand/rock substrate and lots of submerged driftwood/leaf litter.

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Bagrichthys obscurus NG, 1999

April 17th, 2012 — 10:12am

The vernacular name ‘lancer’ is derived from the extended dorsal spine possessed by several members of the genus, which currently contains 7 species. B. obscurus is diagnosable from congerners by the following combination of characters: mouth opening relatively small and narrow; oral dentition significantly reduced; dorsal-fin spi…

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Akysis vespertinus NG, 2008

March 13th, 2012 — 1:26pm

This species is exceptionally rare in the aquarium trade and can be distinguished from congeners by the following combination of characters: snout narrow with head appearing triangular as a resul…

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Akysis longifilis NG, 2006

March 13th, 2012 — 1:26pm

This species is among the few members of the family to have been exported for the aquarium hobby. It can be differentiated from all other Akysis species by the following combination of characters: base of…

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Akysis portellus NG, 2009

March 13th, 2012 — 1:26pm

This species is among the few members of the family to have been exported for the aquarium hobby. It can be differentiated from all other Akysis species by the following combination of characters: base ofmeasures 17.1-19.2% of standard length (S…

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Akysis vespa NG & KOTTELAT, 2004

Orange-Banded Hillstream Catfish

March 13th, 2012 — 1:26pm

This species is among the few members of the family to be exported for the aquarium hobby and we’ve also seen it on sale under various names such as ‘orange-banded stone catfish’, ‘orange micro bumblebee catfish’, ‘Burmese orange mini bee catfish’ or more simply ‘wasp catfish’. Though the majority of forms are yellowish to orange in colouration there appears to exist a bright red variant which to date we’ve only seen in photos.

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Akysis prashadi HORA, 1936

Indawgyi Stream Catfish

March 13th, 2012 — 1:26pm

This species is among the few members of the family to be exported for the aquarium hobby though is by no means common. It can be differentiated from a…

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Akysis pulvinatus NG, 2007

March 13th, 2012 — 1:26pm

This species has been exported for the aquarium hobby on an extremely limited basis. It can be differentiated from all other Akysis species by the following combination of characters: head length 27.6–29.8% of standard length (SL); head width 21.9–25.1% SL; caudal peduncle depth 9.4–10.3% SL; length ofbase 23.0–25.2% SL; nasal barbel len…

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Akysis varius NG & KOTTELAT, 1998

March 13th, 2012 — 1:26pm

This species is among the smaller members of the family. It can be differentiated from all other Akysis species by the following combination of characters: caudal peduncle length 16.1-19.8% of standard length (SL); caudal peduncle depth 6.5-9.3% SL; length of adipose-fin base 25.6-29.5% SL; interorbital distance 42.0-46.0% of head length (HL), eye diameter 13.0-20.0% HL; length of nasal barbel 44.0-66.0% HL; lateral margins of the head appear straight when viewed from above; possession of 0-5 se…

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Acrochordonichthys gyrinus VIDTHAYANON & NG, 2003

March 13th, 2012 — 1:26pm

As in other members of the genus body colouration in this species is variable, even among individuals collected from a single locality, although a few regularities have been observed which can be used to distinguish certain species from one another. This is thought related to the fact that Acrochordonichthys spp. periodically shed their skins and appear paler post-moulting.

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