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Channa sp. 'five stripe'

July 4th, 2013 — 9:54pm

Based on its colour pattern and limited details regarding its natural habitat this species may be adapted to dwelling between and under rocks.

Alipurduar lies in the moist tropical region of floodplains and foothills of the eastern Himalayas commonly referred to as the Dooars or Duars, traditionally considered the gateway to Bhutan.

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Channa sp. 'fire and ice'

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.

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Channa diplogramma (DAY, 1865)

Malabar Snakehead

July 2nd, 2013 — 7:43pm

This species was considered synonymous with the Indochinese congener C. micropeltes for over a century before being revalidated in 2011.

Like in C. micropeltes colour pattern varies depending on the age of the fish.

Juveniles possess two longitudinal black stripes on the head and body with the are…

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Channa burmanica CHAUDHURI, 1919

July 2nd, 2013 — 4:54pm

It’s one of several genus members to lack pelvic fins and following Chaudhuri (1919) also has 51 lateral line scales, 38 dorsal-fin rays, 28 anal-fin rays, 12 caudal-fin rays, 15 predorsal scales, pectoral-fins with alternating dark and light bands, and white-tipped dorsal…

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Channa barca (HAMILTON, 1822)

June 30th, 2013 — 4:50pm

Has been observed to inhabit vertical burrows around the margins of wetlands which typically become dry during winter months.

These burrows are most often around a metre dee…

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Channa baramensis (STEINDACHNER, 1901)

Baram Snakehead

June 30th, 2013 — 3:24pm

This species was considered a synonym of Channa melasoma for a number of years prior to its revalidation by Ng. et al. (1996).

Specimens larger than around 120 mm SL can be distinguished by possession of a black spot in the centre of numerous body scales and a barred caudal-fin pattern, characters which are missing in both C. melasoma and the similar-looking C. cyanospilos.

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Channa argus (CANTOR, 1842)

Northern Snakehead

June 30th, 2013 — 2:28pm

This species is largely 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.

It’s currently illegal to import or own the species in the United States, United Kingdom and several other countries unless in possession of an official license.

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Channa asiatica (LINNAEUS, 1758)

Chinese Snakehead

June 30th, 2013 — 12:58pm

No bubble nest is built and several thousand eggs simply float at the surface with both male and female remaining to defend the eggs and fry.

The eggs hatch after 24-36 hours depending on temperature and the fry are free swimming in a further 24 hours. At this point they resemble 6-7 mm long black tadpoles.

It is important to constantly feed…

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Rhinogobius mekongianus (PELLEGRIN & FANG, 1940)

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.

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Rhinogobius chiengmaiensis FOWLER, 1934

Chiangmai Stream Goby

June 21st, 2013 — 4:11pm

This species has been exported for the ornamental trade but often labelled as the congener R. mekongianus.

Although the two do appear relatively similar R. chiengmaiensis can be identified by a combination of external characters including: presence of 5 irregular dark markings on the body (vs. 7-8 i…

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