Polypterus teugelsi : fisheries

Polypterus teugelsi Britz, 2004

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Polypterus teugelsi
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Cladistii > Polypteriformes (Bichirs) > Polypteridae (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).

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 居于水底的; pH range: 7.4 - 7.5; dH range: ? - 1.   熱帶; 25°C - 27°C (Ref. 51884)

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

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 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 41.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 51884)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 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).
细长的身体, 前部圆柱状与在后部第三侧扁的.(参考文献 51884) 头部有背腹性地扁平的。 (参考文献 51884) 口端位具有突出的超过下颌的上颌, 唇肉质的.(参考文献 51884) 前背的长度 46.7-54.8% 的 SL.(参考文献 51884) 背部离鳍的数字: 6-7, 不经过胸鳍的后面的边缘向前延伸到垂直者.(参考文献 51884) 背鳍与尾鳍鳍条的数字: 15-17.(参考文献 51884) 臀鳍基底短的, 位于相当后面而且靠近尾鳍.(参考文献 51884) 肛门位于臀鳍前面基底的正前方。 (参考文献 51884) 鳞片: 63-65个侧线鳞片, 身体, 28-33个前背的鳞片周围的 37-40个鳞片,48-51个腹鳍前的鳞片.(参考文献 51884) 活体有一个在背部与身体, 一个橘色的腹面与黑色的胸鳍背外侧表面方面的橄榄色背景上组成一个黑点的网络的独特的颜色。 (参考文献 51884) 当保存在酒精中时,背部一半的身体是浅褐色的到黄褐色的有不规则的形成较深色的网络图案,明显特徵是稚鱼的深褐色标志的图案, 但是在最大的标本中进入背景颜色之内混合; 身体的半边侧面全微白色的; 延伸的水平深色条纹从眼睛下方到前鳃盖骨, 使深色条纹倾向的第二个 caudoventrally 从眼睛下方到下颌; 颊,眼睛周围,吻与上唇与下唇散布着褐色斑点。 (参考文献 51884) 胸鳍,腹鳍与臀鳍在浅褐色的背景上有不规则的深褐色的线; 软的背鳍、尾鳍、臀鳍与腹鳍有垂直的黑色线条。 (参考文献 51884)

生物学特性     字汇 (例如 epibenthic)

Most abundant in densely shaded rainforest streams (Ref. 51884).

最丰富在厚密阴暗的雨林溪流.(参考文献 51884)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

非洲: 狀似十字河的特有種。 (參考文獻 51884)

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

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)

世界自然保护联盟红皮书 (Ref. 123251)

  数据缺失 (DD) ; Date assessed: 16 February 2009

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业:
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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00170 - 0.00978), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  .
脆弱性 (Ref. 59153):  Moderate vulnerability (40 of 100) .
价格分类 (Ref. 80766):   Unknown.