Phractolaemus ansorgii Boulenger, 1901
Hingemouth
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Phractolaemus ansorgii
拍攝者 Sazima, I.
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拍攝者 Sazima, I.
分類 / 名稱 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Gonorynchiformes (Milkfishes) 鼠□目 (Milkfishes) > Phractolaemidae (Hingemouths) 枕枝魚科 (Hingemouths)
Etymology: Phractolaemus: Greek, phraktos = fence + Greek, laimos = throttle (Ref. 45335).
Eponymy: Dr William John Ansorge (1850–1913) was an English explorer and collector who was active in Africa in the second half of the 19th century. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Etymology: Phractolaemus: Greek, phraktos = fence + Greek, laimos = throttle (Ref. 45335).
Eponymy: Dr William John Ansorge (1850–1913) was an English explorer and collector who was active in Africa in the second half of the 19th century. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
; 淡水 底中水層性; pH range: 6.0 - 8.0; dH range: ? - 25. 熱帶; 25°C - 30°C (Ref. 13371)
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Africa: in West Africa from Lake Nokoué (Ouémé River, Benin) (Ref. 81277) to Cross River (Cameroon) (Ref. 52397), including Ogun, Osse and Niger Delta (Ref. 81277). Also in the middle Congo River basin (Ref. 93183) in Republic of Congo and Democratic Republic of the Congo.
非洲: 從尼日三角州到瑙固維湖與剛果河流域,限制了分布。
非洲: 從尼日三角州到瑙固維湖與剛果河流域,限制了分布。
大小 / 重量 / 年齡
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) : 6; 臀棘: 0; 臀鰭軟條: 6; 脊椎骨: 34 - 38. Diagnosis: head depressed and strongly ossified; anterior nostril elongate, forming an oblique, forward-pointing tube; posterior nostril crescent-shaped, located just behind the narial tube (Ref. 2913, 81277). Mouth small, protrusible (Ref. 245, 31256, 81277), placed at tip of a proboscis and opening upwards between the narial tubes (Ref. 2913, 81277), on upper surface of snout (Ref. 245, 31256). Narrow gill opening, but opercles very well developed, covering also the underside of the head where they overlap (Ref. 2913, 81277, 93183).
Body shape (shape guide): elongated; Cross section: circular.
多骨的頭部。 鼻骨開口: 1) 細管,2) 半-在細管後面的圓圈。 狹窄的鰓裂。 背鰭與臀鰭有 2 單一的與 4個分支條。 骨骼的公式: 3.5/35-38/4.5:3.5:16 在 210 公分TL 的性同種二形: 眼與小刺的周圍雄性有 4個大的瘤結在尾梗上。 偶鰭帶有了紅色。
Body shape (shape guide): elongated; Cross section: circular.
多骨的頭部。 鼻骨開口: 1) 細管,2) 半-在細管後面的圓圈。 狹窄的鰓裂。 背鰭與臀鰭有 2 單一的與 4個分支條。 骨骼的公式: 3.5/35-38/4.5:3.5:16 在 210 公分TL 的性同種二形: 眼與小刺的周圍雄性有 4個大的瘤結在尾梗上。 偶鰭帶有了紅色。
Facultative or obligate air-breathing (Ref. 126274); Lives in forest pools and swamps (Ref. 41580). Microphagous (Ref. 4910, 41580, 45483), especially phytophagous (epiphytes), and detritiphagous (Ref. 41580). Swim bladder entirely alveolar, functioning like a lung; this adaptation to aerial breathing allows the fish to survive under poor oxygenation conditions (Ref. 2913, 81277); recorded from nearly deoxygenated lungfish nest in Pool Malebo, Congo DR (Ref. 41585). Gonads, which are largely fused, are situated ventrally, not dorsally, in abdominal cavity (Ref. 41580). Mouth can be projected as a small trunk (Ref. 2913). Eggs transparent, yellow-greenish, 1.5-1.7mm diameter; large females may have several thousands of eggs (Ref. 41580). Particular blood system, with dark coloured and an abundant amouth of blood (Ref. 4910).
泳鰾具有肺的功能, 讓這一個種在缺氧的水域中存活。 嘴能被突出作為一個小的軀幹。
泳鰾具有肺的功能, 讓這一個種在缺氧的水域中存活。 嘴能被突出作為一個小的軀幹。
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Males and females have lateral tubercles on their body which probably aid in maintaining contact during spawning (Ref. 38266).非洲: 從尼日三角州到瑙固維湖與剛果河流域,限制了分布。
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 | 合作者
Lévêque, C., 1990. Phractolaemidae. p. 189-191. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres d'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren, and O.R.S.T.O.M.,Paris, 384 p. (Ref. 2913)
CITES
Not Evaluated
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網路資源
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基於模型的估計
|
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00437 (0.00169 - 0.01126), b=3.14 (2.91 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
營養階層 (參考文獻 69278) |
2.3 ±0.1 se; based on diet studies. |
|
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |