Facultative air-breathing ; Inhabits swampy areas bordering the mainstream of the Kapuas River and its tributaries .
Dorsal spines (total): 0; Dorsal soft rays (total): 65 - 72; Anal spines: 0; Anal soft rays: 51 - 60. Very short occipital process length (5.2-6.6% HL), a relatively long distance between the tip of the occipital process and the dorsal fin origin (6.4-8.7% SL), the anterior edge of the pectoral spine smooth and without serrae, and a relatively short anal fin compared to C. nieuhofii with 51-60 rays .: elongated.
Behavioural data for Clarias Kapuasensis is currently being reviewed.
Diet information for Clarias Kapuasensis is currently being compiled.
Reproduction data for Clarias Kapuasensis is currently being compiled.
Freshwater; demersal. Tropical West Borneo, Indonesia.
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