分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Beloniformes (Needle fishes)
頜針魚目 (Needle fishes) >
Belonidae (Needlefishes)
頜針魚科 (Needlefishes)
Etymology: Potamorrhaphis: Greek, potamos = river + Greek, rhaphis = needle (Ref. 45335).
Eponymy: Professor Dr Carl Henry Eigenmann (1863–1927) was a German-born American ichthyologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 大洋性; 深度上下限 0 - ? m. 熱帶
South America: Upper Madeira River and its tributaries (Beni, Mamoré, and Guaporé); and Paraguay-Paraná River basin.
南美洲: 在玻利維亞與從馬得拉群島河上游與它的支流 (Beni ， Mamore 與 Guapore) 被記錄的巴西; 也從巴拉圭-Parana 的系統。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 22.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 10994)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 27 - 33; 臀棘: 0; 臀鳍软条: 24 - 29; 脊椎骨: 64 - 72. Most closely resembles P. guianensis from which it differs most markedly in lower numbers of dorsal and anal fin rays, vertebrae, and predorsal scales. Predorsal scales 77-113, mean 93.9.
Body shape (shape guide): elongated.
极近似 P. guianensis 从它在背鳍棘条与臀鳍棘条，脊椎骨与前背的鳞片的低数量中不同得最显着。 前背的鳞片 77-113, 意谓 93.9.
Oviparous (Ref. 205). Eggs may be found attached to objects in the water by tendrils on the egg's surface (Ref. 205).
卵生的.(参考文献 205) 卵可能被发现于在卵的表面上的卷须水依附于目标。 (参考文献 205)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在玻利維亞與從馬得拉群島河上游與它的支流 (Beni ， Mamore 與 Guapore) 被記錄的巴西; 也從巴拉圭-Parana 的系統。
Collette, B.B., 1982. South American freshwater needlefishes of the genus Potamorrhaphis (Beloniformes: Belonidae). Proc. Biol. Soc. Wash. 95(4):714-747. (Ref. 10994)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (参考文献
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00126 (0.00057 - 0.00279), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (18 of 100).
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