Silurichthys phaiosoma (Bleeker, 1851)
Silurichthys phaiosoma
photo by Roberts, T.R.

Family:  Siluridae (Sheatfishes)
Max. size:  15 cm SL (male/unsexed)
Environment:  demersal; freshwater; pH range: 4 - 5
Distribution:  Asia: known only from northwestern Borneo (Ref. 32835). Reported from the Mekong basin (Ref. 12693).
Diagnosis:  Dorsal soft rays (total): 4-4; Anal soft rays: 49-56; Vertebrae: 49-52. A relatively long forked caudal fin with upper lobe 1.4-1.6 times longer than lower lobe and a more convex snout when viewed laterally (Ref. 32835).
Biology:  Found in very acidic (pH 4-5), tannin-stained blackwater habitats associated with peat swamps (Ref. 32835). Occurs in lowland stream and peat. Nocturnal; feeding on aquatic insect and smaller fishes (Ref. 57235). Feeds mainly on insect larvae. Probably non-migratory. Not seen in markets (Ref. 12693).
IUCN Red List Status: Near Threatened (NT); Date assessed: 01 September 2018 (A3c) Ref. (126983)
Threat to humans:  harmless

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