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).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Asia: Myanmar. Known from the type locality in the Sittang River drainage, southern Myanmar (Ref. 80395)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.4 cm SL male/unsexed; (Ref. 80397)
Dorsal spines (total): 1; Dorsal soft rays (total): 4 - 5; Vertebrae: 32 - 33. Akysis portellus is most similar to A. longifilis, which occurs sympatrically in the Sittang River drainage. It is distinguished from A. longifilis in having a shorter adipose-fin base, smaller mouth and a more rounded head shape when viewed dorsally (Ref. 80397).
Body shape (shape guide): elongated; Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ng, H.H., 2009. Akysis portellus sp. Nov., a new species of catfish (Teleostei: Akysidae) from the Sittang River drainage, Myanmar. Journal of Threatened Taxa 1(1):2-8. (Ref. 80397)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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