Hypostomus rhantos Armbruster, Tansey & Lujan, 2007
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: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335); rhantos: Rhantos is Greek for sprinkled, speckled, or spotted and refers to the tiny randomly placed spots of the species (Ref. 58737).
Etymology: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335); rhantos: Rhantos is Greek for sprinkled, speckled, or spotted and refers to the tiny randomly placed spots of the species (Ref. 58737).
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. ; 5°N - 3°N, 66°W - 67°W
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Venezuela. Currently known from the Río Ventuari, a tributary of the upper Río Orinoco, and the mainstem upper Orinoco above Puerto Ayacucho to the Río Casiquiare in Amazonas (Ref. 58737).
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
Hypostomus rhantos is described for a uniquely pigmented species of loricariid catfish from the upper Río Orinoco of Amazonas, Venezuela. Light gray to tan when alive, becoming tan when preserved. Body densely covered with tiny spots, head spots even smaller than body spots. Spots present on all fins, generally larger than spots on body, evenly distributed on rays, spines, and membranes. Caudal fin membranes light and spotted anteriorly, fading to dark wash posteriorly. Abdomen lighter than sides, with tiny spots. Occasionally with four dorsal saddles, first below anterior dorsal-fin rays, second below and slightly behind posterior dorsal-fin rays, third below and slightly anterior to adipose-fin spine, and fourth at base of caudal peduncle; all saddles angled anteriorly, saddles one and two combine and continue to base of pelvic fin, third and fourth terminating at middle of midventral plate row. Fin spines usually lighter than rest of body. Spots relatively larger in juveniles. Juveniles with fewer spots distally on all fins, lower half of caudal fin much darker. Head and nape forming arch from tip of snout to origin of dorsal fin. Body depth decreasing from origin of dorsal fin to dorsal procurrent caudal spines then increasing to caudal fin. A rounded ridge present from anterodorsal corner of orbit, running ventral to nares, and ending slightly anteroventral of anterior nare. Longitudinal ridge of raised bone and slightly larger odontodes present on pterotic-supracleithrum beginning at posterodorsal corner of orbit and contiguous with supraorbital ridge. Space between orbits concave such that supraorbital ridge higher than medial surface of head. Supraoccipital convex medially with slight crest (Ref. 58737).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Facultative air-breathing in the genus (Ref. 126274)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 : Fisch-Muller, Sonia | 合作者
Armbruster, J.W., L.A. Tansey and N.K. Lujan, 2007. Hypostomus rhantos (Siluriformes: Loricariidae), a new species from southern Venezuela. Zootaxa 1553:59-68. (Ref. 58737)
CITES
Not Evaluated
对人类的威胁
人类利用
渔业: 没有兴趣
FAO - Publication: search | FishSource |
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营养生态学
食物（猎物）
食性组成
食物消耗量
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遗传学
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基于模型的估算
|
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01585 (0.00733 - 0.03429), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
| 0 | |
|
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
|
渔业脆弱性 (Ref. 59153) |
Moderate vulnerability (38 of 100). 🛈 |