Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Mochokidae
(Squeakers or upside-down catfishes)
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335). More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical; 5°N - 4°N
Africa: endemic to the Nyong River in Cameroon (Ref. 81251).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.7 cm SL male/unsexed; (Ref. 81251)
Morphology | Morphometrics
spines: 0. Diagnosis: mandibular barbels with numerous ramifications, branches rather long and not thickened; base of adipose fin at most 3.6 times distance between dorsal fin and base of adipose fin; head and body more or less spotted; interorbital distance at most 86.6% of snout length; maxillary barbels typically with a large, dark, basal membrane; 28-33 movable mandibular teeth; postocular length at least 60% of snout length; maxillary barbel 0.8-2.2 times HL; entire margin of opercle smooth; caudal fin without single dark patch at base of each fin lobe; dorsal spine prolonged by a short filament, without serrations along anterior edge (except a few distally), but strongly serrate along posterior edge; caudal fin spotted (Ref. 81251).
Oviparous (Ref. 205). Maximum total length reported 20.3 cm (Ref. 3202).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).
Gosse, J.-P., 1986. Mochokidae. p. 105-152. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3202)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .