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Order : Cypriniformes
Family : DANIONIDAE
Species : Rasbora dusonensis
Maximum length (excluding tail fin) : 12 cm
(Fishbase, 2026)
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Link to Fishbase
Rasbora dusonensis
(Rosefin Rasbora) occurs in a
variety of habitats and is sometimes abundant in larger slow-flowing rivers
in forested areas. It ventures into the shallows searching for its prey -
mainly insects and crustacean larvae, and will also consume algae.
It is
slender in form and is best identified by the dark-edged tail fin. In larger
specimens there is a dark grey lateral stripe which may not be clearly
evident in smaller fish.
The species ranges throughout Indochina (e.g. Tonle Sap, Mekong River Basin)
and Thailand (e.g. Chao Phraya River Basin) through Peninsular Malaysia to
Borneo and Sumatra.
Figs 1 and 2 : Medium-size (7 cm) examples at Sungai Tahan, Taman Negara, Pahang Peninsular
Malaysia.
Fig 3 : Shallow, sandy embankment at Sungai Tahan, Taman Negara, Pahang Peninsular
Malaysia.
References :
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