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Barbodes binotatus (VALENCIENNES, 1842)

Spotted Barb

July 11th, 2012 — 12:58pm

This species is so ubiquitous across its natural range that it’s often referred to simply as ‘common barb’. Basic adult colour pattern consists of a small, dark spot at the base of the dorsal-fin origin and another on the caudal peduncle but overall appearance varies somewhat depending on origin, with the anterior dark spot enlarged ventrally forming a bar or posterior spot extending into the caudal-fin, for example. The spots may also appear darker or lighter in some individuals.

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Schistura yingjiangensis ZHU, 1982

May 27th, 2012 — 7:09pm

Following Kottelat (1990) the genus Nemacheilus is characterised by a combination of characters as follows: elongate body; complete lateral line; presence of enlarged scales above and below the lateral line in some species; caudal-fin forked to deeply forked with enlarged upp…

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Schistura polytaenia (ZHU, 1982)

May 27th, 2012 — 7:03pm

Schistura species are omnivorous although the bulk of their diet consists of small insects, worms, crustaceans and other zooplankton with only relatively small amounts of plant matter consumed, mostly via the stomach contents of prey items.

In the aquarium they will acc…

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Microdevario nanus (KOTTELAT & WITTE, 1999)

May 24th, 2012 — 1:08pm

Towards the Andaman Sea the lower part of the delta gives way to brackish mangrove swamps. The climate is wet, with annual precipitati0n of 1500 – 2500 mm, up to 90% of which falls between mid May and mid November, and warm with average air temperatures of 22 – 37 °C over the course of the year.

At one locality M. nanus was collected in less then 30cm of water from an oxbow lake among floating Pistia-like vegetation and gra…

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Indostomus paradoxus PRASHAD & MUKERJI, 1929

Armoured Stickleback

March 13th, 2012 — 1:26pm

This species is rare in the aquarium hobby though its name is often misapplied to the closely-related I. crocodilus. It can be told apart from congeners by the following characters: dorsal and anal fins without dark markings, with a light brown bar in breeding males; ventral surface light brown; throat white, occasionally with a few brown spots; ridges of head bones weakly serrated or not serrated, depending on the bone.

The family Indostomidae currently contains just a single genus with three species of which I. paradoxus is the type. It was raised alongside both family…

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Parasphaerichthys lineatus BRITZ & KOTTELAT, 2002

March 13th, 2012 — 1:26pm

This species is sometimes traded under the names 'mini chocolate gourami', 'Burmese chocolate gourami' or mislabelled as the congener P. ocellatus, these two currently comprising the only known members of the genus.

P. lineatus can be told apart from P. ocellatus via the following combination of characters: smaller body size (maximum standard length 18.7 mm vs. 32.0 mm); absence of ocellus-type marking in middle of each flank (vs. presence); presence of dark, stripe (vs. abs…

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Oryzias dancena (HAMILTON, 1822)

Indian Ricefish

March 13th, 2012 — 1:26pm

This species continues to be mislabelled as O. melastigma, a name currently considered invalid by the majority of recent workers, or O. javanicus, a valid but distinct taxon. Roberts (1998) demonstrated that MClelland’s description of Aplocheilus melastigmus, later renamed O. melastigma, does not correspond with any known Oryzias species from the Indian subcontinent or Myanmar since it’s said to have a dark spot in the dorsal-fin and an excessively slim body, among other anomalies.

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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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Microdevario gatesi (HERRE, 1939)

March 13th, 2012 — 1:26pm

The genus Microdevario was raised by Fang et al. (2009) after phylogenetic analyses revealed that some species formerly included in Microrasbora to be more closely allied with Devario and in need of reclassification. Microdevario is largely separated from Devario and other closely related genera such as Chela and Laubuca by virtue of internal characters but also the following: small adult size; anal and dorsal fins with concave-shaped distal margin; absence of barbels; absence of perforated scales; 9-10 branched anal-fin rays; 7 branched dorsal-fin rays; less abdominal than caudal vertebrae.

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Devario interruptus (DAY, 1870)

March 13th, 2012 — 1:26pm

This species has mostly been collected from small (1-2 metres wide, 20-40 cm deep), moderate-to-swiftly-flowing streams with clear water, substrates of sand, gravel and rocks and no aquatic vegetation. Marginal vegetation was present in some cases, offering a degree of shade, and sympatric species included an unidentified Schistura sp., S. vinciguerrae, Misgurnus anguillicaudatus, Garra qiaojiensis,…

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