Actinopteri (ray-finned fishes) > Characiformes
(Characins) > Anostomidae
Etymology: Pseudanos: Derived from Greek, pseudes = false (Ref. 45335). More on author: Kner.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: ? - 7.0; dH range: 2 - 8; depth range - 1 m (Ref. 2060), usually - m (Ref. ). Tropical; 24°C - 26°C (Ref. 2060)
South America: Guaporé, Negro and Orinoco River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.1 cm SL male/unsexed; (Ref. 91907); common length : 14.0 cm TL male/unsexed; (Ref. 2060)
Morphology | Morphometrics
soft rays: 11 - 12. Can be diagnosed by having the following characters: four branchiostegal rays; dark spots absent on the center of each body scale; and angle of the dorsal and ventralmost radii of body scales between 110° and 180° (Ref. 91907).
Adults are found in crevices in fast-flowing creeks (Ref. 598). Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairs breed on densely grown weedy places (Ref. 205).
Géry, J., 1977. Characoids of the world. Neptune City ; Reigate : T.F.H. [etc.]; 672 p. : ill. (chiefly col.) ; 23 cm. (Ref. 598)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00533 - 0.02257), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.4 ±0.2 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 to moderate vulnerability (30 of 100) .