Teleostei (teleosts) >
Characiformes (Characins) >
Stevardiidae (Stevardiids) > Creagrutinae
Etymology: Microgenys: Greek, mikros = small + greek, genys, -yos = face (Ref. 45335).
Eponymy: Dr Wolfgang Karl Weyrauch (1907–1970) was a German zoologist, malacologist, and ecologist who went to Peru (1938). [...] (Ref. 128868), visit book page.
More on author: Fowler.
Issue
Possibly a junior synonym of Bryconacidnus ellisi (Pearson, 1924), as suggested by Géry (1977:398).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Amazon River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.8 cm SL male/unsexed; (Ref. 38376)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
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