分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Cynolebias: Greek, kyon = dog + Greek, odous = teeth + Greek, lebias = a kind of small fish (Ref. 45335).
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性.
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Verde Grande River drainage, Bahia, Brazil.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 3.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 118117); 3.7 cm SL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
Cynolebias elegans is similar to other members of the C. gilbertoi group (C. gilbertoi and C. ochraceus) and distinguished from all other species of the subgenus Cynolebias, by having 19-16 vomerine teeth (vs. 1-4, when teeth are present), 7-8 gill-rakers on the ventral part of the first branchial arch (vs. 9-12), highest body depth at vertical just anterior to base of pelvic fin (vs. through base of pecto¬ral fin), and flank with light dots arranged in vertical groups (vs. light dots when present not arranged in vertical groups). It can be diagnosed from C. gil¬bertoi and C. ochraceus by possessing long dorsal and anal fins in males, their extremities excluding filaments posteri¬orly reaching base of caudal fin (vs. reaching caudal pedun¬cle), greater pre-pelvic length in males (52.2-53.9 % SL, vs. 48.5-49.9 % SL in C. gilbertoi and 48.9-50.5 % SL in C. ochraceus), and first proximal radial of the anal fin between neural spines of 9th and 10th vertebrae in males, and between neural spines of 11th and 12th vertebrae in females (vs. between neural spines of 11th and 13th verte¬brae in males, and between neural spines of 12th and 14th vertebrae in females). It can be further differentiated from C. gilbertoi by having the following characters: larger head (31.3-34.2 % SL in males, 32.1-33.4 % in females, vs. 27.9-30.3 % SL in males, 29.0-31.1 % in females) and smaller eye (25.5-29.1 % of head length in males, 27.3-29.9 % in fe¬males, vs. 30.0-31.0 % of head length in males, 31.5-34.2 % in females). It can be also distinguished from C. ochraceus by having 31-32 ver¬tebrae (vs. 33-34), narrower body depth (32.5-34.5 % SL vs. 35.0-37.8 % SL), and flank light pur¬plish brown in males (vs. light yellow ochre) (Ref. 118117).
Body shape (shape guide): fusiform / normal.
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Costa, W.J.E.M., 2017. Description of two endangered new seasonal killifish species of the genus Cynolebias from the São Francisco River basin, Brazilian Caatinga (Cyprinodontiformes, Aplocheilidae). Zoosyst. Evol. 93(2):333-341. (Ref. 118117)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
极度濒危 (CR) (A2ac; B1ab(iii)+2ab(iii); D); Date assessed: 29 December 2020
人类利用
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特别资料
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网络资源
基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
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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