February 15th, 2014 — 12:12pm
There is considerable confusion surrounding the identity of B. bagarius with its name having been widely applied to a relatively small species that is said to reach only 200 mm SL and considered to be common in northern India and much of Indochina.
Comment » | Category: Siluriformes, The Rest
Crocodile Catfish
February 15th, 2014 — 11:30am
The genus Bagarius is distinguished from all other genera in the putative subfamily Sisoridae by having markedly heterodont teeth in the lower jaw. Teeth are present in two or three outer rows of relatively numerous, close-set conical teeth, and one or two inner rows of less numerous, widely separated, and much larger conical teeth (vs. dentition of the lower jaw consisting of only small conical teeth, or a roughened bony plate).
Comment » | Category: Siluriformes, The Rest
Goonch
February 8th, 2014 — 5:49pm
This species is clearly unsuitable for the home aquarium given its eventual size and natural behaviour, and we know of only a handful of private aquarists with the facilities required to house it long-term.
The grouping currently contains four species but is in urgent need of review with a number of additional taxa thought to exist and B. yarrelli possibly representing a synonym of B. bagarius.
1 comment » | Category: Siluriformes, The Rest
Black Snakehead
January 2nd, 2014 — 7:34pm
This species can be told apart from the similar-looking congener C. baramensis (once considered synonymous with C. melasoma) by absence (vs. presence) of a black spot in the centre of numerous body scales and absence (vs. presence in specimens larger than 120 mm SL) of a barred caudal-fin pattern.
Comment » | Category: Perciformes, Snakeheads
Emperor Snakehead
January 1st, 2014 — 5:31pm
This species is often confused with the nominal congeners C. marulius (Hamilton, 1822) and C. melanoptera (Bleeker, 1855) with all three presenting taxonomic problems.
For example, C. marulioides exhibits a number of variations in colour pattern depending on collection locality with the most common possessing a brownish base colour with a series of dark, chevron-like markings along each flank and some scales margined posteriorly in white.
Comment » | Category: Perciformes, Snakeheads
Bullseye Snakehead
January 1st, 2014 — 3:15pm
This species is also referred to as ‘giant’, ‘great’, ‘cobra’, or ‘Indian’ snakehead.
Although currently-considered to be distributed throughout much of southern Asia it is widely-accepted to represent a complex of related species in need of additional research.
A number of geographical variants exhibiting diffe…
Comment » | Category: Perciformes, Snakeheads
Fire Bar 'Danio'
July 26th, 2013 — 2:40pm
A peaceful species suited to a well-chosen community aquarium.
There are plenty of potential tankmates including many cyprinids, loaches, cichlids, catfishes and characins, although as always proper research is essential in order to avoid problems.
Comment » | Category: Cypriniformes, The Rest
Forest Snakehead
July 10th, 2013 — 4:05pm
Prefers a dimly-lit aquarium with plenty of cover in the form of live plants, driftwood branches, terracotta pipes, plant pots, etc., arranged to form a network of nooks, crannies, and shaded spots.
Surface vegetation such as Ceratopteris spp. is also appreciated and makes the fish less inclined to conceal themselves.
Comment » | Category: Perciformes, Snakeheads
July 2nd, 2013 — 8:30pm
This unidentified species first appeared in the aquarium trade during 2009.
It’s easily told apart from similar-looking congeners by the patches of vivid red pigmentation surrounding the eye and sides of the mouth plus the thick, reddish, marginal band in the caudal-fin.
Comment » | Category: Perciformes, Snakeheads
June 24th, 2013 — 12:20pm
Known from various parts of the middle and upper Mekong river basins with record existing from the Nam Tha, Nam Ou, Nam Khan, Nam Lik, Nam Ngum and Nam Mang tributary systems in Laos, the Nam Noeua (a tributary of Nam Ou) in Vietnam, and the Mae Nam Kok in Thailand.
Occurrences in the Chao Phraya drainage in central Thailand most likely refer to the congener R. chiengmaiensis.
Comment » | Category: Gobies & Sleepers, Perciformes
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