Teleostei (teleosts) >
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlinae
Eponymy: Dr George Sprague Myers (1905–1985), an American ichthyologist, bio-geographer and herpetologist, was Professor Emeritus of Biological Sciences at Stanford, California. [...] (Ref. 128868), visit book page.
More on author: Schultz.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 6.5 - 7.5; dH range: 0 - 2. Tropical; 22°C - 30°C (Ref. 40602)
South America: Amazon River basin, in the Putumayo and Napo River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 19.0 cm SL male/unsexed; (Ref. 36377)
Is unknown to aquarists (Ref. 12251).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Over 1000 eggs are deposited on open substrate (e.g. stones) and guarded by both parents. Larvae are transferred to a depression in the sand created by the female (Ref. 40602).
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 (Global))
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.02951 (0.01298 - 0.06710), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
3.2 ±0.45 se; based on food items. |
Resilience (Ref. 120179) |
Medium, minimum population doubling time 1.4 - 4.4 years (Fec > 1,000). |
Fishing Vulnerability (Ref. 59153) |
Low to moderate vulnerability (27 of 100). 🛈 |