分类 / 名称
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Teleostei >
Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Microcambevinae
Etymology: Listrura: Greek, listroo = to tie + Greek, oura = tail (Ref. 45335); tetraradiata: Named for the number of pectoral fin rays, a diagnostic feature.
More on authors: Landim & Costa.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性. 熱帶
South America: Ibicuíba River, Araruama Lagoon system in Brazil.
南美洲: 巴西。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 4.4 cm SL 雄鱼/尚未辨别雌雄; (Ref. 41513)
简单描述
检索表 | 型态特徵 | 形态测量图
脊椎骨: 47 - 49. Pectoral fin rays 4 and segmented; first ray unbranched, its tip elongate forming a filament; rays 2-4 branched with distal tip free from the membrane. Dorsal and anal fins all branched. Dorsal procurrent caudal fin rays 21-28; ventral procurrent 21-24. Mouth subterminal; lips and barbels covered by papillae. Premaxillary teeth 27-32; dentary teeth 24-31 (Ref. 41513).
Body shape (shape guide): elongated; Cross section: oval.
胸鳍鳍条 4 与分段的; 第一个鳍条不分枝的, 它的顶端延长形成一个丝状突起; 具有末端的鳍条 2-4 分枝与薄膜分离。 背鳍与臀鳍全部分枝。 背部的前流尾鳍鳍条 21-28; 腹的前流 21-24. 嘴接近端位的; 唇与触须被乳突盖着了。 上颌骨前的齿 27-32; 齿骨齿 24-31.(参考文献 41513)
Specimens collected from a small, clear water forest stream, shallow (ca. 40 cm deep), with large rocks on banks, gravel and sand on the bottom. Stomach contents include copepods and insect larvae and mites (Ref. 41513).
采集自一个小且清澈的水森林水流的标本 , 浅滩 (大约 40 公分深), 在底部上的浅堆，砾石与沙子上有大的岩石。 胃内含物包括桡脚类的动物与昆虫幼生与小虱。 (参考文献 41513)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 巴西。
Landim, M.I. and W.J.E.M. Costa, 2002. Listrura tetraradiata (Siluriformes: Trichomycteridae): a new glanapterygine catfish from the southeastern Brazilian coastal plains. Copeia 2002(1):152-156. (Ref. 41513)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
极度濒危 (CR) (B2ab(iii)); Date assessed: 07 November 2018
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 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.1 ±0.30 se; based on food items.
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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