Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Siluridae
Etymology: Kryptopterus: Greek, kryptos = hidden + Greek, pteron = wing. Fin (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Mekong River drainage.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.3 cm SL male/unsexed; (Ref. 55768)
Morphology | Morphometrics
soft rays: 68 - 73;
Vertebrae: 48 - 50. Distinguished from all congeners in having a unique combination of the following characters: lack of dorsal fin; vomerine in two separate patches; head width 7.9-9.4% SL; 24-28 gill rakers on first gill arch; 9 branchiostegal rays; and more laterally positioned eyes with only ventral half of orbital margin visible when head is viewed from below (interorbital distance 34.2-43.4% HL) (Ref. 55768).
Feeds on invertebrates and small fishes. In the Cambodian Mekong, the fish migrates into the flooded forest during high water periods and returns to the rivers in November where they remain until March (Ref. 55768).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ng, H.H., 2003. Kryptopterus paraschilbeides, a new species of catfish (Teleostei: Siluridae) from mainland Southeast Asia. Nat. Hist. J. Chulalongkorn Univ. 3(1):1-8. (Ref. 55768)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00285 - 0.01163), b=3.00 (2.83 - 3.17), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.0 ±0.60 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .