分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Nannocharax: Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335); reidi: Named in honor of the collector of the specimens that served as the basis of the description, Dr. Gordon McGregor Reid, of the North of England Zoological Society, who first reported that these samples might represent an undescribed form (Ref. 54201).
More on authors: Vari & Ferraris.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性. 热带
Africa: Cross River basin in Cameroon (Ref. 54201, 81638, 95523).
非洲: 在喀麦隆的十字河流域.(参考文献 54201)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.4 cm SL 雄鱼/尚未辨别雌雄; (Ref. 81638)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 10 - 12; 臀棘: 0; 臀鳍软条: 8 - 10; 脊椎骨: 36 - 38. Diagnosis: 46-48 (Ref. 81638) or 47-49 (Ref. 54201) lateral line scales. 6-8 anal fin branched rays; tip of pelvic fin falling short of, or barely extending to rear of, vent; dark pigmentation on body in form of broad bars or with overall dark pigmentation; adipose fin pigmented to at least some degree; completely dark in some larger individuals (Ref. 81638).
细长的身体, 相当广阔地横着在区域中从头部的后面到垂直的经过在后部终点背鳍基底与逐渐地横着-扁长形的在较后者的区域后面.(参考文献 54201) 头部与身体的腹面区域明显地位于腹鳍的嵌入前平的; 平的程度更明显的在较大的被调查的标本中.(参考文献 54201) 上嘴唇与头部的吻与背部部分覆盖着小的像乳突一样的突起了。 (参考文献 54201) 嘴些微接近端位.(参考文献 54201) 许多同属的种的下颌比较宽相对于环境.(参考文献 54201) 颌齿细长的, 双尖的, 而且些微地末梢部地扩大,在每個頜中有單一系列的功能齒; 齒骨 5 或者 6個齒, 前頜骨 5 或 6個齒 , 顎骨無齒的.(參考文獻 54201) 鱗片是有櫛鱗的, 由於由成列的獨立成骨形成的 cteni 放置沿著鱗片的後緣.(參考文獻 54201) 側線鱗片系列完全地有孔的了, 與在系列的最後鱗片水平細長.(參考文獻 54201)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
非洲: 在喀麦隆的十字河流域.(参考文献 54201)
Vari, R.P. and C.J. Ferraris Jr., 2004. A new species of Nannocharax (Characiformes: Distichodontidae) from Cameroon, with the description of contact organs and breeding tubercles in the genus. Proc. Biol. Soc. Wash. 117(4):551-563. (Ref. 54201)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00147 - 0.00981), b=3.11 (2.88 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
