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Actinopterygii (strålfeniga fiskar) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines)
Etymology: xiphidius: The name xiphidus meaning sword in Latin was given because of the characteristic longitudinal black band which decorates the sides, the snout up to the caudal peduncle in the female and the caudal fin in the male (Ref. 27188).

Miljö / Klimat / Range Ekologi

; sötvatten bentopelagisk; pH range: 6.0 - 6.5; dH range: 6 - ?; ej vandrande. Tropical; 22°C - 25°C (Ref. 2060), preferred ?

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South America: Oyapock River basin and adjacent coastal drainages.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.5 cm TL hane/ej könsbestämd; (Ref. 35237); 3.0 cm TL (female); common length : 4.0 cm TL hane/ej könsbestämd; (Ref. 27139); rapporterad maxålder: 3 år (Ref. 35237)

Especially found in very shallow parts of small brooks where water is brown and rich in tannin and the substrate consists of decaying vegetation (Ref. 35237). Stays in the shaded areas of small, slow flowing rivers, sympatric with R. geayi, R. agilae, R. lungi, and R. cladophorus. Sexual differentiation is possible at 4 months of age (Ref. 27188). Not a seasonal killifish (Ref. 27139). Reproduction is not so prolific; is considered difficult to maintain in the aquarium. Sexual differentiation is possible at 3 months but reproduction occurs for the first time at around one year (Ref. 35237). If pursued by a predator this species may jump on land where it rests for a few seconds before re-entering the water (Ref. 35237).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Eggs measure 1.6 mm diameter. Sexes can be distinguished at about 3 months of age. Dominant males are followed by 1-3 females.

Main reference Upload your references | referenser | Koordinator : Costa, Wilson J.E.M. | Medarbetare

Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. 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. 36579)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: saknar intresse

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Laimosemion xiphidius (Huber, 1979)