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Zaireichthys heterurus Roberts, 2003

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Zaireichthys heterurus
Picture by RMCA / Mark Hanssens

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Teleostei > Siluriformes (Catfishes) 鯰形目 (Catfishes) > Amphiliidae (Loach catfishes) 無棘鯰科 (Loach catfishes) > Leptoglaninae
Etymology: Zaireichthys: Composed form Zaire river + Greek,ichtys = fish; the habitat of this fish (Ref. 45335);  heterurus: The name heterurus is from the Greek 'heteros', different, and 'oura', tail (Ref. 51287).
More on author: Roberts.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 居於水底的. 熱帶

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Africa: eastern Congo River basin in the Democratic Republic of the Congo (Ref. 51287, 78218, 86935).
非洲: 剛果

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 3.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 51287)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

脊椎骨: 33 - 34. Diagnosis: Zaireichthys heterurus is distinguished from all other species of Zaireichthys by the presence of only 5 principal rays in the lower lobe of the caudal fin (Ref. 86935). The species has, like Zaireichthys zonatus a broad dark collar immediately posterior to head; larger specimens become stouter, more than any other leptoglanin species (Ref. 86935).
頭部寬廣地圓的。 (參考文獻 51287) 眼小的.(參考文獻 51287) 觸鬚變細, 向後延伸的上頜骨觸鬚幾乎到胸鰭棘的末端。 (參考文獻 51287) 主要尾鰭鰭條的數字: 7+5.(參考文獻 51287) 肱骨的突起中等長度而矮胖的但是不有小齒狀突的.(參考文獻 51287) 尾鰭深深地分岔, 上葉比較短與比較小很多, 與鐮刀狀的, 下葉圓的; 在下葉的鰭條易見的比那些在上葉更厚.(參考文獻 51287) 尾柄一般細長.(參考文獻 51287) 彩色斑紋有斑點的, 具有一個寬的深色頸圈緊鄰在頭部後面.(參考文獻 51287)

生物學特性     字彙 (例如 epibenthic)

Found in clear, swift flowing tributaries lying to the east of the Congo River mainstream (Ref. 51287).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

非洲: 剛果

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Roberts, T.R., 2003. Systematics and osteology of Leptoglaninae a new subfamily of the African catfish family Amphiliidae, with descriptions of three new genera and six new species. Proc. Calif. Acad. Sci. 54(5):81-132. (Ref. 51287)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.0   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).