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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Biotoecus: Greek, biotos, ou = life, existence + Greek, oikos = house, habitat (Ref. 45335); dicentrarchus: Named for the 2 anal fin spines, Greek prefix 'di' for two and nouns 'kentron' for spine and 'archos' for vent; noun in apposition (Ref. 86446).
More on author: Kullander.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water benthopelagisch. Tropical

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

South America: Orinoco River basin, from the Inírida River (Colombia) to Maripa, (Venezuela)

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 3.8 cm SL mannelijk / geslacht onbekend; (Ref. 36377)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 7 - 8; Dorsale zachte stralen (totaal): 14-16; Anale stekels 2; Anale zachte stralen: 6 - 8. 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).

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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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).

Hoofdreferentie Upload your references | Referenties | Coördinator : Kullander, Sven O. | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

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Biotoecus dicentrarchus Kullander, 1989