分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Cladistii >
Polypteriformes (Bichirs)
多鰭魚目 (Bichirs) >
Polypteridae (Bichirs)
多鰭魚科 (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335); teugelsi: Named after Guy Teugels, curator of fishes at the Royal Museum for Central Africa (MRAC), in honor of his myriad influential contributions to the systematics of African freshwater fishes (Ref. 51884).
Eponymy: Dr Guy G Teugels (1954–2003) was a Belgian ichthyologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: 7.4 - 7.5; dH range: ? - 1. 熱帶; 25°C - 27°C (Ref. 51884)
Africa: restricted to upper Cross River in Cameroon (Ref. 51884, 81628).
非洲: 狀似十字河的特有種。 (參考文獻 51884)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 41.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 51884)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 7 - 9; 脊椎骨: 63 - 65. Diagnosis: Polypterus teugelsi is distinguished from all congeners by its unique live colouration comprising a network of black marks on an olive background on the dorsal and dorsolateral surface of the body, black pectoral fins, and an orange belly (Ref. 51884). It is further distinguished from species of the Polypterus bichir group by having the dorsal spines not extending anteriorly to the vertical through the posterior margin of the pectoral fin vs. extending to that point, 28-33 predorsal scales vs. 11-16, 7-9 dorsal spines vs. 11-18, and 37-40 scales around the body vs. 42-52 (Ref. 51884). It differs from all remaining Polypterus species, except P. ornatipinnis, by having more scales in the lateral line, 63-65 vs. 51-61 (Ref. 51884). It is distinguished from P. ornatipinnis in having 7-9 dorsal spines vs. 9-11, 28-33 predorsal scales vs. 22-27, 37-40 scales around the body vs. 40-42, and a very different colour pattern (Ref. 51884). It is distinguished from the similar Polypterus retropinnis in having a longer predorsal portion of the body, the predorsal length 46,7-54,8% of standard length vs. 55,7-63,2% and distance between pectoral fin and dorsal fin 18,3-25,2% of standard length vs. 30,2-42,6%; more prepelvic scales, 48-51 vs. 44-46; fewer predorsal scales, 28-33 vs. 33-36; more pectoral-fin rays, 40-42 vs. 26-32; more vertebrae, 63-65 vs. 57-58; in the absence of the distinct black blotch on the pectoral fin base vs. presence; and in the clour pattern of the dorsal and dorsolateral portions of the body, irregular dark marks forming a network vs. large dorsal black blotches (Ref. 51884).
細長的身體, 前部圓柱狀與在後部第三側扁的.(參考文獻 51884) 頭部有背腹性地扁平的。 (參考文獻 51884) 口端位具有突出的超過下頜的上頜, 唇肉質的.(參考文獻 51884) 前背的長度 46.7-54.8% 的 SL.(參考文獻 51884) 背部離鰭的數字: 6-7, 不經過胸鰭的後面的邊緣向前延伸到垂直者.(參考文獻 51884) 背鰭與尾鰭鰭條的數字: 15-17.(參考文獻 51884) 臀鰭基底短的, 位於相當後面而且靠近尾鰭.(參考文獻 51884) 肛門位於臀鰭前面基底的正前方。 (參考文獻 51884) 鱗片: 63-65個側線鱗片, 身體， 28-33個前背的鱗片周圍的 37-40個鱗片,48-51個腹鰭前的鱗片.(參考文獻 51884) 活體有一個在背部與身體, 一個橘色的腹面與黑色的胸鰭背外側表面方面的橄欖色背景上組成一個黑點的網絡的獨特的顏色。 (參考文獻 51884) 當保存在酒精中時，背部一半的身體是淺褐色的到黃褐色的有不規則的形成較深色的網絡圖案,明顯特徵是稚魚的深褐色標誌的圖案, 但是在最大的標本中進入背景顏色之內混合; 身體的半邊側面全微白色的; 延伸的水平深色條紋從眼睛下方到前鰓蓋骨, 使深色條紋傾向的第二個 caudoventrally 從眼睛下方到下頜; 頰，眼睛周圍，吻與上唇與下唇散佈著褐色斑點。 (參考文獻 51884) 胸鰭，腹鰭與臀鰭在淺褐色的背景上有不規則的深褐色的線; 軟的背鰭、尾鰭、臀鰭與腹鰭有垂直的黑色線條。 (參考文獻 51884)
Facultative air-breathing in the genus (Ref. 126274); Most abundant in densely shaded rainforest streams (Ref. 51884).
最豐富在濃密陰暗的雨林溪流.(參考文獻 51884)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 狀似十字河的特有種。 (參考文獻 51884)
Britz, R., 2004. Polypterus teugelsi, a new species of bichir from the Upper Cross River system in Cameroon (Actinopterygii: Cladistia: Polypteridae). Ichthyol. Explor. Freshwat. 15(2):179-186. (Ref. 51884)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00197 - 0.01063), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.5 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): Moderate vulnerability (40 of 100).
