分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Hypancistrus: Greek, hypo = under + Greek, agkistron = hook (Ref. 45335); margaritatus: The specific epithet is Latin for 'adorned with pearls,' in reference to the dense white spots on the body.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 居于水底的.
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Takutu River, a tributary of the Rio Branco, Rio Negro drainage, Amazon basin in Guyana.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 4.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 114591)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 2; 背的软条 (总数) : 7; 臀鳍软条: 5. Hypancistrus margaritatus differs from all other species of Hypancistrus by its color pattern consisting of dense, small, light-colored spots on a dark base color (vs. color pattern of light spots on a dark base color in H. inspec¬tor, H. lunaorum, and H. contradens). This species has consistently-sized spots on head and trunk about the size of the nasal aperture (vs. smaller spots on head than trunk in H. inspector, spots usually smaller than half the nasal diameter in H. lunaorum, and spots ranging in size from equal to or larger in diameter of nasal aper¬ture in H. contradens); has more spots, 23 in a lateral, horizontal series from snout tip to base of caudal peduncle 23 in holotype (vs. 8-20 spots in H. contradens; 8-16 in H. lunaorum); and has more densely-packed spots relative to H. lunaorum, with spots on lateral surface of the body having a minimum interspot to spot diameter ratio ranging from 1.0-1.6 (vs. 1.9-4.4 in H. lunaorum) (Ref. 114591).
Body shape (shape guide): fusiform / normal.
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Tan, M. and J.W. Armbruster, 2016. Two new species of spotted Hypancistrus from the Rio Negro drainage (Loricariidae, Hypostominae). ZooKeys 552:123-135. (Ref. 114591)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 商业性; 水族馆: 商业性
工具
特别资料
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网络资源
基于模型的估算
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01096 (0.00429 - 0.02803), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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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.). |
渔业脆弱性 (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |