分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Stevardiidae (Stevardiids) > Xenurobryconinae
Etymology: Ptychocharax: Greek, ptyx, -ychos = fold + Greek, charax = a marine fish without identification (Ref. 45335).
More on authors: Weitzman, Fink, Machado-Allison & RoyeroL..
Issue
Weitzman et al. (1994). See Weitzman & Menezes (1998) for relationships. See Burns et al. (1995) for evidence of insemination.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 大洋性. 熱帶
South America: Upper Siapa River in Casiquiare River drainage in Venezuela.
南美洲: Casiquiare 河流域的 Siapa 河上游。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 6.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 26734)
Inhabits clear streams with sand and granitic rocks bottoms covered by dense mats of the plant Apinaga multibranchiata (Podostemaceae) in areas of fast water. Feeds on larvae of aquatic insects such as simuliids and trichopterans that were found among the podostemacean plants. A few ants and spiders were also found in the stomachs.
在快速水的区域中栖息于清澈溪流，底部为砂质与花岗岩的地方被植物 Apinaga multibranchiata(川苔草) 的密集垫盖着的。 吃水生昆虫幼生例如 simuliids 与被发现于 podostemacean 植物中的毛翅目昆虫。 一些蚂蚁与蜘蛛也被发现于腹部。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: Casiquiare 河流域的 Siapa 河上游。
Weitzman, S.H., S.V. Fink, A. Machado-Allison and R. Royero L., 1994. A new genus and species of Glandulocaudinae (Teleostei: Characidae) from southern Venezuela. Ichthyol. Explor. Freshwat. 5(1):45-64. (Ref. 26734)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
人类利用
工具
特别资料
下载 XML
网络资源
Estimates based on models
Phylogenetic diversity index (参考文献
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00443 - 0.02057), b=3.06 (2.88 - 3.24), 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): 3.3 ±0.42 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
🛈
