分類 / Names
俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii
輻鰭魚綱 (條鰭魚) >
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).
環境 / 氣候 / 範圍
生態學
; 淡水 底中水層性; pH range: 6.0 - 6.5; dH range: 6 - ?; 非遷移的. 22°C - 25°C (Ref. 2060), preferred ?
South America: Oyapock River basin and adjacent coastal drainages.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 35237); 3.0 cm TL (female); common length : 4.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 27139); 最大年齡: 3 年 (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
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Eggs measure 1.6 mm diameter. Sexes can be distinguished at about 3 months of age. Dominant males are followed by 1-3 females.
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)
CITES (Ref. 94142)
Not Evaluated
人類使用
漁業: 沒有興趣
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