分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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).
Eponymy: Professor Dr Gordon McGregor Reid (d: 1948) is a British ichthyologist, zoologist and zoo director. [...] (Ref. 128868), visit book page.
More on authors: Vari & Ferraris.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性. 熱帶
Africa: Cross River basin in Cameroon (Ref. 54201, 81638, 95523).
非洲: 在喀麥隆的十字河流域.(參考文獻 54201)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 81638)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 10 - 12; 臀棘: 0; 臀鰭軟條: 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).
細長的身體, 相當廣闊地橫著在區域中從頭部的後面到垂直的經過在後部終點背鰭基底與逐漸地橫著-扁長形的在較後者的區域後面.(參考文獻 54201) 頭部與身體的腹面區域位於明顯地被平的腹鰭的嵌入前; 平的程度更明顯的在較大的被調查的標本中.(參考文獻 54201) 上嘴唇與頭部的吻與背部部分覆蓋著小的像乳突一樣的突起了。 (參考文獻 54201) 嘴些微接近端位.(參考文獻 54201) 許多同屬的種的下頜比較寬相對於環境.(參考文獻 54201) 頜齒延長，二頭齒, 而且些微地末梢部地擴大, 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, 在系列中有最後的鱗片水平地延長.(參考文獻 54201)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 在喀麥隆的十字河流域.(參考文獻 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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 潛在的興趣
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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=0.00447 (0.00189 - 0.01058), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
