Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Mochokidae
(Squeakers or upside-down catfishes)
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335); ngouniensis: Specific name referring to the Ngounié River basin, its type locality (Ref. 78701).
Environment / Climate / Range
Freshwater; benthopelagic. Tropical, preferred ?
Africa: Ngounié River basin and upper Nyanga River basin in Gabon and Republic of Congo (Ref. 78701).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 19.0 cm TL male/unsexed; (Ref. 78701)
Morphology | Morphometrics
(total): 7. Distinguished from other species in this genus in having the following set of characters: 1-4 weakly developed serrations, distally located on the anterior part of the dorsal spine (vs. entirely well serrated); mandibular teeth 12-19 (vs. at least 23); membrane broad; i.e., proximally at least as brad as barbel thread, on the proximal 2/3 of the maxillary barbel (vs. none or very weakly developed); striking color pattern, black background with whitish irregularly shaped lines and dots (Ref. 78701).
Specimens have been caught in the Dola River (Gabon) at depth of 0.80 m above a sand/gravel substrate; water here was opaque, alkaline (pH 8.41) with high conductivity and with temperature of 24.0°C (Ref. 78701).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
de Weirdt, D.D., E. Vreven and Y. Fermon, 2008. Synodontis ngouniensis, new species (Siluriformes: Mochokidae) from the Ngounié and Nyanga basins, Gabon and Republic of Congo. Ichthyol. Explor. Freshwat. 19(2):121-128. (Ref. 78701)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg 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=0.00617 (0.00259 - 0.01467), b=3.09 (2.88 - 3.30), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .