Taxonomy & naming
Pseudomystus funebris Ng, 2010 is the valid name in the Catalog of Fishes, described from near Tangkiling in the Rungan River drainage, Kalimantan Tengah. The epithet funebris is Latin for 'funereal', referring to the dark body colour.
Morphology
Pseudomystus are small bagrid catfishes of South and Southeast Asia, with a short adipose fin, four pairs of barbels, a serrated spine at the front of the dorsal and pectoral fins, and a body marked with pale and dark bands or stripes in most species. FishBase gives this species a maximum of 2 in SL.
Habitat
FishBase says it is known currently only from the Rungan River in southern Borneo, part of the Kahayan River drainage, a lowland forest and peat-swamp region. It is a freshwater, bottom-living tropical species.
Feeding
Bagrids of this genus are nocturnal carnivores and omnivores that take insects, crustaceans, worms and small fish. Species-level diet data are not recorded in the sources available to the atlas. In captivity they accept frozen foods, live worms and meaty sinking pellets.
Mating
Mating behaviour is not recorded in the sources available to the atlas.
Breeding
Captive breeding of this species is not recorded in the sources available to the atlas.
In the aquarium
Offer plenty of caves and dark retreats; the fish are shy by day and active after dark. Avoid keeping them with fish small enough to be swallowed. Handle with care because of the pectoral and dorsal spines. FishBase gives no temperature, pH or hardness range for this species.
Conservation
The IUCN Red List lists it as Vulnerable, meaning it faces a high risk of extinction in the wild. FishBase gives no assessment year. It is known from a single river, and lowland forest streams in the region are being cleared and polluted.