分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Goodeidae (Splitfins) > Goodeinae
Etymology: francesae: Named for Frances H. Miller (Ref. 29410).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 熱帶; 21°C - 27°C (Ref. 12468); 21°N - 20°N
North America: Teuchitlan River, Mexico.
北美洲: Teuchitlan 河，墨西哥。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 6398); 5.0 cm TL (female)
背的软条 (总数): 15-17; 臀鳍软条: 14 - 15; 脊椎骨: 30 - 35. Males with a less prominent notch in dorsal fin; no irregular black spots on sides of body; a gray cast superimposed on gold body and gray fins. Head wedged shaped; upturned lips; proportionately larger head and orbit. Tendency to fewer lateral scales, predorsal scales and vertebrae. Male with fins larger, especially dorsal and anal fins; greater prepelvic length, head and body depths; first 6 anal-fin rays small folding into fleshy dermal pocket supported by 7th ray; dorsal fin notched, first 4-5 rays separated slightly from the rest.
在背鳍雄性有一个比较不突出凹槽; 没有在身体侧边上的不规则的黑色斑点; 灰色的外貌在金色的身体与灰色的鳍上重叠了。 头部楔形的; 朝上的唇; 比例上比较大的头部与眼窝。 倾向比较少的侧面鳞片，前背的鳞片与脊椎骨。 雄鱼有鳍比较大的, 尤其背鳍与臀鳍; 比较大的腹鳍前的长度, 头部与身体深度; 最初 6个臀鳍棘条小的折叠进入肉质的表皮口袋之内由第 7个鳍条支撑了; 背鳍凹槽, 与其他部分略微分开的第一个 4-5 鳍条。
An experimental fish. Pinnate diatoms (largely benthic), filamentous algae indicate that this species grazes rocks and plant surfaces along or near the bottom (Ref. 29410).
一个实验的鱼。 羽状的硅藻 (相当底栖), 菌丝藻指出这种啃食岩石，而且植物表面沿着或在底部的附近.(参考文献 29410)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Viviparous. Gestation lasts for about 55 to 60 days. Produces 10-15, rarely 20, young. Matures approximately at the fifth month.北美洲: Teuchitlan 河，墨西哥。
Kingston, D.I., 1978. Skiffia francesae, a new species of goodeid fish from Western Mexico. Copeia 1978(3):503-508. (Ref. 29410)
人类利用
水族馆: 商业性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.3 ±0.23 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
