分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Cambeva: Probably derived from the Tupi-Guarani, is a popular name for trichomycterid fishes in southern and south-eastern Brazil (Ref. 119381); atrobrunnea: Name 'atrobrunnea' from the Latin word 'ater' and 'brunneus', meaning 'dull black,dark' and 'brown', in reference to predominant colour of the flank in adult specimens of the new species.
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: Brazil.
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 7.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 137708)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 2 - 3; 背的软条 (总数) : 6 - 7; 臀棘: 2; 臀鳍软条: 5 - 6; 脊椎骨: 39 - 40. This species is distinguished from its congeners by the following set of characters: two posterior-most dorsal and ventral procurrent caudal-fin rays segmented; subtruncate caudal fin; interopercular odontodes 20-22; specimens below about 40 mm SL having flank light grey with small black dots that are arranged in irregular rows, coalesced on the anterior portion of the longitudinal midline to form a stripe; nasal barbel reaching area just anterior to opercle; ventral procurrent caudal-fin rays 13 or 14; jaw teeth irregularly arranged procurrent caudal-fin rays 21 dorsal and 13 or 14 ventral; opercular odontodes 12; pectoral-fin rays 7; anterior infraorbital absent; posterior margin of the caudal fin slightly convex; hypertrophied papillae on the ventral surface of the head absent; pectoral-fin filament absent; opercular odontodes 12; interopercular odontodes 20-22; dorsal procurrent caudal-fin rays 21; ventral procurrent caudal-fin rays 13 or 14; dorsal-fin origin at a vertical through the centrum of the 21st or 22nd vertebra; jaw teeth pointed, irregularly arranged; vertebrae 39 or 40 (Ref. 137708).
Body shape (shape guide): elongated; Cross section: oval.
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Costa, W.J.E.M., C.R.M Feltrin, J.L.O Mattos and A.M. Katz, 2024. Top mountain areas of subtropical southern Brazil sheltering four new small-ranged catfishes (Siluriformes, Trichomycteridae): relationships and taxonomy. Evolutionary Systematics. 8:199-218. (Ref. 137708)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 没有兴趣
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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00337 - 0.01709), b=3.00 (2.81 - 3.19), 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): 3.2 ±0.4 se; based on size and trophs of closest relatives
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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