AquaticRepublic.com - Pseudomystus mahakamensis (Bagridae) All Fishes

All Fishes Data Sheet
Scientific Name	**Pseudomystus mahakamensis** (Vaillant, 1902)
Common Name	Bornean Clown Catfish
Type Locality	Tepoe, Mahakam River, eastern Kalimantan, Borneo, Indonesia.
Synonym(s)	Leiocassis mahakamensis
Pronunciation	SUE doh MIST uss - ma hah kah man seess
Etymology	From the Greek pseudos, meaning lie, and mystus, a genus of bagrid catfishes. In reference to the overall similarity of the two genera. The specific epithet comes from the type locality, the Mahakam River.
Species Information
Size	100mm or 3.9" SL. Find near, nearer or same sized spp.
Identification	Members of the bagrid genus Pseudomystus are small- to mid-sized freshwater catfish endemic to Southeast Asia.Pseudomystus are commonly found in swamps and rivers throughout Southeast Asia. They can be differentiated from Leiocassis by a relatively short snout and a subterminal mouth. Many Pseudomystus have a color pattern of contrasting vertical bars or blotches. This species is easily distinguished by its extremely slender body, highly depressed head and bold pattern of stripes.
Sexing	Males have an elongate genital papilla in front of the anal fin.
Habitat Information
Distribution	Asia: Sumatra and east Borneo. Pacific, Greater Sunda Island Rivers, Borneo Waters, East Borneo Waters (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Data Deficient , range map and more is available on the IUCN species page. Last assessed 2019.
pH	5.8 - 6.8
Temperature	22.0-27.0°C or 71.6-80.6°F (Show species within this range)
Husbandry Information
Breeding	Unreported.
Breeding Reports	There is no breeding report.
Further Information
Reference	Notes from the Leyden Museum v. 24 (note 1), pp 55, Figs. 4-5.
Registered Keepers	There is no registered keeper.
Wishlists	Love this species? Click the heart to add it to your wish list. There is no wish to keep this species.
Spotters	Spotted this species somewhere? Click the binoculars! There is no record of this fish being seen.
Forum BBCode

	Look up P. mahakamensis on PlanetCatfish.com
	Look up P. mahakamensis on Fishbase
	Look up P. mahakamensis on Encyclopedia of Life
	Look up P. mahakamensis on Global Biodiversity Information Facility
	LFS label creator ARN ref:1.8.171.968
Last Update	2025 Jan 02 01:39 (species record created: 2006 Dec 24 11:44)