Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); bilustris: The specific epithet is the Latin adjective bilustris, meaning "that lasts two lustra (i.e. ten years)", in reference to the fact that the specimens comprising the type series were collected in two expeditions exactly ten years apart (Ref. 87997).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical; 15°N - 14°N, 106°E - 107°E
Asia: Laos. Known only from two geographically proximate localities in the Xe Kong drainage, a major subdrainage of the Mekong River in southern Laos (Ref. 87997).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.5 cm SL male/unsexed; (Ref. 87997)
Short description
Identification keys | Morphology | Morphometrics
Akysis bilustris is distinguished from congeners by a combination of the following characters: eye diameter 14.0–17.5% HL; serrae on posterior margin of pectoral spine 2–3 and longer than half width of spine, pectoral fin reaching to or overlapping pelvic-fin base (length 24.5–29.3% SL), adipose-fin base length 14.3–18.3% SL, body depth at anus 11.4–13.8% SL, caudal-peduncle length 19.6–23.4% SL; caudal-peduncle depth 6.7–9.2% SL; caudal fin emarginate, and vertebrae 30–31 (Ref. 87997).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ng, H.H., 2011. Akysis bilustris, a new species of catfish from southern Laos (Siluriformes: Akysidae). Zootaxa 3066:61-68. (Ref. 87997)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
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