分类 / 名称
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Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Xenophallus: Greek, xenos = strange + Latin, phallus = penis (Ref. 45335).
More on author: Meek.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 大洋性; pH range: ? - 7.2; dH range: ? - 3; 深度上下限 10 - 20 m (Ref. 36880). 熱帶; 21°C - 37°C (Ref. 36880)
Central America: Lake Nicaragua on the Atlantic drainage to the Río Parismina and the Río Tenorio drainage on the Pacific slope (Ref. 36880). Costa Rica and Nicaragua.
中美洲: 在太平洋斜坡上的在大西洋的流域到 Rio Parismina 與 Rio Tenorio 流域上的湖尼加拉瓜.(參考文獻 36880) 哥斯大黎加與尼加拉瓜。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 4.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 36880)
Body thin, translucent and yellowish. Base of the first dorsal rays with a black blotch; in males the posterior edge of the dorsal fin is also black and sometimes the remainder of the fin is brilliant yellow. The males and young have 5 to 10 black bars on the side which are diffuse or absent in females. The gonopodium is asymmetrical and either dextral or sinistral; the apex of which in mature males bears a long upper projection and swelling below, both of which are membranous (Ref. 36880).
Body shape (shape guide): elongated; Cross section: oval.
身体细的，半透明的与淡黄色的。 第一背鳍鳍条的基底具有一个黑色的斑块; 在背鳍的雄性后缘中也是黑色的与有时那其余的鳍是鲜黄色。 雄性与幼鱼侧边上有 5 到 10条黑色的横带那是扩散或者不存在于雌性。 生殖足是不对称的与或右边或左的; 那一个在成熟的雄性中有一个长的上面突出的尖顶与隆起的在下面, 那是都有膜状的.(参考文献 36880)
Inhabits waters of all velocities, between 35 and 590 m elevation, with temperatures of 21 to 37°C. Lives in small groups in brooks, creeks and along the shorelines of rivers where it feeds on detritus, filamentous algae, aquatic insects and ooze. Probably reproduces throughout the year (Ref. 36880).
用 21 到 37个 ° C. 的温度栖息于在 35 与 590 公尺海拔之间的所有速度的水域 生活在小溪中的小群鱼群, 小溪而且沿着河的海岸线在哪里它吃碎屑，菌丝藻，水生昆虫与软泥。 可能繁殖全年度。 (参考文献 36880)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
After 28 days gestation, about 15 to 50 young are born. Sexual maturity is reached after 3-4 months (Ref. 2060).中美洲: 在太平洋斜坡上的在大西洋的流域到 Rio Parismina 與 Rio Tenorio 流域上的湖尼加拉瓜.(參考文獻 36880) 哥斯大黎加與尼加拉瓜。
Lucinda, P.H.F., 2003. Poeciliidae (Livebearers). p. 555-581. 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, Brazil. (Ref. 50894)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
易受伤害 (VU) (B1ab(iii)); Date assessed: 12 August 2019
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基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00369 - 0.01962), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 2.4 ±0.21 se; based on food items.
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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