Cyphocharax biocellatus

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Cyphocharax biocellatus Vari, Sidlauskas & Le Bail, 2012

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drawing shows typical species in Curimatidae.

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

Teleostei > Characiformes (Characins) > Curimatidae (Toothless characins)
Etymology: Cyphocharax: Greek, kyphos = curved, humpback + Greek, charax = a marine fish without identification (Ref. 45335);  biocellatus: The specific name is derived from the Latin bi, meaning two, and ocellatus, meaning having little eyes, in reference to the two small dark spots on the lateral surface of the body in the species, one under the dorsal fin and the second on the middle of the caudal peduncle..
More on authors: Vari, Sidlauskas & LeBail.

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

; 淡水 底中水层性.

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

South America: Marowijne River/Maroni River system in eastern Suriname and western French Guiana, and the Mana basin in French Guiana.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 6.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 90234)

简单描述 型态特徵 | 形态测量图

背的软条 (总数): 12; 臀鳍软条: 10; 脊椎骨: 31 - 32. Can be diagnosed from all congeners by the possession in all but the smallest examined specimens of a midlateral spot of dark pigmentation in the region ventral to the dorsal fin, with the spot when present ranging in intensity from a diffuse concentration of dark chromatophores in smaller specimens to a distinct black spot in the larger examined individuals. Can be further separated from many congeners by its pigmentation features which include the presence of a dark, midlateral somewhat longitudinally-ovoid spot on the posterior portion of the caudal peduncle and scales overlying the basal portions of the middle caudal-fin rays; the absence of a series of dark stripes running between the scale rows; the lack of a patch of dark pigmentation on the dorsal fin; the hyaline or lightly speckled adipose fin. Further differs meristically from various other congeners in the number of lateral line scales 29 to 31; the number of scales above the lateral line 5; the number of scales below the lateral line 4 or 5, and the number of vertebrae 31 or 32 (Ref. 90234).

生物学特性     字汇 (例如 epibenthic)

The type locality of the holotype is a side channel of Litani River that isolated a small, elongate, forested island. The channel dominantly consists of shallow cataracts over a bedrock substrate strewn with boulders in the upper portions and a small, shallow (less than 2 m deep) backwater over a sand substrate in the downstream portion. The channel margins are composed of shallow pockets of slackwater habitat, often with submerged vegetation and shaded by overhanging bank vegetation extending into the water. Found in shallow (0.50 m deep) tributary to the main river in an area with relatively rapid water flow (around 1m/s) and principally sandy substrate with some rocky bars and large pieces of dead wood (Ref. 90234).

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


主要参考文献 Upload your references | 参考文献 | 合作者 : Vari, Richard P. | 合作者

Vari, R.P., B.L. Sidlauskas and P.-Y. Le Bail, 2012. New species of Cyphocharax (Ostariophysi: Characiformes: Curimatidae) from Suriname and French Guiana and a discussion of curimatid diversity on the Guiana Shield. Cybium 36(1):63-69. (Ref. 90234)

世界自然保护联盟红皮书 (Ref. 130435)

  临近濒危 (NT) (B1b(iii,v)); Date assessed: 12 March 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

FAO - Publication: search | FishSource |

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眼睛色素

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特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00318 - 0.01897), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).