分類 / 名稱 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Osteoglossiformes (Bony tongues) 骨舌魚目 (Bony tongues) > Mormyridae (Elephantfishes) 象鼻魚科 (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335); sauvagii: Named in honour of Dr. H.E. Sauvage (Ref. 42539).
Eponymy: Dr Louis César Henri Ėmile Sauvage (1842–1917) was a French palaeontologist, herpetologist and ichthyologist. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335); sauvagii: Named in honour of Dr. H.E. Sauvage (Ref. 42539).
Eponymy: Dr Louis César Henri Ėmile Sauvage (1842–1917) was a French palaeontologist, herpetologist and ichthyologist. [...] (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 居於水底的. 熱帶
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Africa: Congo River basin and Niger Delta (Ref. 2915, 85331). Possibly present in the coastal Nigerian fringe (Ref. 2915). Reports from coastal basins of Cameroon (Ref. 51193) or the Chiloango (Ref. 88943) questionable as the species is reported to be absent from the Lower Guinea Ichthyological Province (Ref. 85331).
非洲: 剛果河流域，尼日三角州, 而且可能是出現在海岸的奈及利亞邊界.(參考文獻 2915)
非洲: 剛果河流域，尼日三角州, 而且可能是出現在海岸的奈及利亞邊界.(參考文獻 2915)
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) : 26 - 28; 臀棘: 0; 臀鰭軟條: 34 - 36. Petrocephalus sauvagii is distinguished from all other Petrocephalus species in Central Africa by the following combination of characteristics: very wide mouth (mouthwidth 2,7 to 3,7 in head length) associated with a characteristic head shape when viewed from above, anal fin with at least 32 branched rays, dorsal fin with at least 25 branched rays, mouth subterminal, ration between the head length and the mouth position as large as 7,4 (Ref. 85331). It has 17-30 teeth in upper jaw, and 29-35 teeth in lower jaw (Ref. 2915, 85331). Pigmentation pattern with two melanin markings, sometimes of weak intensity or even scarcely visible: (1) an irregularly round black mark below the anterior base (first to fourth rays) of the dorsal fin; and (2) an ovoid blackish mark, often irregularly shaped, at the base of the caudal fin, extending onto the upper and lower fleshy lobes of the fin (Ref. 85331).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
體高 2.6-3.1 x SL, 尾柄高度 16.7-18 x SL, 臀鰭基底鰭 3.2-3.5 x SL。 眼直徑 4.0-4.6個 x 頭長。 主要地第一個銀色的有背部被有顯著的黑色的鰭條。 斑點不碰觸背鰭基底。
Body shape (shape guide): fusiform / normal; Cross section: compressed.
體高 2.6-3.1 x SL, 尾柄高度 16.7-18 x SL, 臀鰭基底鰭 3.2-3.5 x SL。 眼直徑 4.0-4.6個 x 頭長。 主要地第一個銀色的有背部被有顯著的黑色的鰭條。 斑點不碰觸背鰭基底。
Affinities: Same color as P. soudanensis, but distinguished by mouth position, number of teeth and eye size; same morphology as P. bane and P. ansorgii (Ref. 2915).
分類相關: 如 P. soudanensis 的相同顏色. 區別的特徵為嘴巴位置，牙齒數目，眼睛大小了。 如 P. 毒藥 與 P. ansorgii 的相同形態學.
分類相關: 如 P. soudanensis 的相同顏色. 區別的特徵為嘴巴位置，牙齒數目，眼睛大小了。 如 P. 毒藥 與 P. ansorgii 的相同形態學.
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 剛果河流域，尼日三角州, 而且可能是出現在海岸的奈及利亞邊界.(參考文獻 2915)
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.D. Paugy and G.G. Teugels (eds.), 1990. Faune des poissons d'eaux douces et saumâtres d'Afrique de l'Ouest. Tome 1. Coll. Faune Tropicale N° 28. Musée Royal de l'Afrique Centrale, Tervuren, Belgique et O.R.S.T.O.M., Paris, France. 384 p. (Ref. 2703)
CITES
Not Evaluated
對人類具威脅
無害處的
人類使用
FAO - Publication: search | FishSource |
更多資訊
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網路資源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes: 屬, 種 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 樹狀分類階層 | Wikipedia: 去, 搜尋 | World Records Freshwater Fishing | 動物學的記錄
基於模型的估計
|
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01549 (0.00678 - 0.03537), b=2.86 (2.68 - 3.04), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
|
營養階層 (參考文獻 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
|
回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.). |
|
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (16 of 100). 🛈 |