Teleostei (teleosts) >
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Retroculinae
Etymology: Retroculus: Latin, retro = backwards, on the back side + Latin, oculus = eye; the relative posterior position of the eye in the head as compared to other cichlids (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 6.5 - ? ; dH range: ? - 2. Tropical; 27°C - 30°C (Ref. 13614)
South America: Amazon River basin, in the Xingu and Tapajós River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 31.0 cm TL male/unsexed; (Ref. 111518); max. published weight: 520.00 g (Ref. 111518)
Inhabits rivers (Ref. 12965). Maximum length 25 cm TL (Ref. 13614).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. 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. 36377)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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