Biotoecus dicentrarchus
No common name
Collection Details
Specimens
Photos
There are no photos available for this taxon yet.
Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Cichlidae (Cichlids)
Biotoecus
Biotoecus dicentrarchus
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
and processed using AI-assisted text extraction.
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Characters
Body shape: elongated. This species is distinguished from all other cichlids by having only two (vs. three or more) anal spines; differs from B. opercularis by lacking anguloarticular lateralis canal; 3 or 4 (vs. 5) skin openings and 2 or 3 (vs. 4) canal fragments representing the dentary lateralis canal; dorsal fin with slightly prolonged anterior spines and lappets; modal dorsal fin count VII.15 (vs. VIII.14); and 6 (vs. 5) dark spots along the middle of the side (Ref. 86446).
Distribution
South America: Orinoco River basin, from the Inírida River (Colombia) to Maripa, (Venezuela)
Habitat Associations
Freshwater. benthopelagic.
Biology
The type locality was a shallow laguna about 25 m wide, with transparent water, vegetation resembling needlegrass; water temperature 34°C; associated with another cichlid species,
Crenicara filamentosum, the dominant species at the locality (Ref. 86446).
Max length: 3.8 cm SL.
Reproductive mode: dioecism; fertilization: external; guarders (clutch tenders); parental care: maternal. Eggs are deposited at the ceiling of a cave; the female tends to eggs and yolk-sac larvae; both parents care for the free-swimming young (Ref. 42051).
IUCN Red List Status: Least Concern (LC), assessed 2020-10-22. Resilience: Medium (Assuming Fec<1000).
Commercial or Environmental Importance
Fisheries: of no interest.
References
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.
Staeck, W. (2002) Biotoecus dicentrarchus Eingeführt und nachgezüchtet. Datz 55(6):30-31.
Kullander, S.O. (1989) Biotoecus Eigenmann and Kennedy (Teleostei: Cichlidae): description of a new species from the Orinoco basin and revised generic diagnosis. J. Nat. Hist. 23:225-260.
Comments On Biotoecus dicentrarchus