Sphaerichthys vaillanti (Samurai Gourami) – Green Chapter | 水產百科網

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The Samurai Gourami (Sphaerichthys vaillanti) is a semi-rare species that is found in the Kalimantan River in Borneo; more specifically, in the area of the village of Nangah Sebroeang, which is south of the Danau Sentarum National Park in the upper Kapuas river basin, West Kalimantan province (the Indonesian part of Borneo).

Samurai Gourami appear to be endemic to the Kapuas drainage where it has also been recorded from the Danau Sentarum lake system, to downstream near the city of Sintang.

Samurai Gourami are categorized under Anabantidae and like other gourami have a labyrinth organ that allows them to survive oxygen depleted environments and deteriorating water conditions that would kill other species.

Although sexing is difficult, the females have vertical red and green bars and possess a uniformly straight lower jaw profile and more acuminate head shape than the males.&nbs...