分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Eponymy: Dr Silvina Adela Menu-Marque is an Argentinean zoologist at the Department of Biological Sciences, University of Buenos Aires, where her doctorate was awarded (2002). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 居于水底的. 溫帶
分布
国家 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Mendoza River basin in Argentina.
南美洲: Mendoza 河流域。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 7.3 cm 雄鱼/尚未辨别雌雄; (Ref. 33071)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 11 - 14; 臀鳍软条: 10 - 12; 脊椎骨: 39 - 43. Entire surface of body skin perforated by pores of ampullary organs; cephalic sensory canal system represented only by anterior portion of supraorbital canal enclosed by nasal bone, and posterior portion of postotic canal enclosed by pterotic and posttemporosupracleithrum; two anteriormost pores of supraorbital canal present medial to anterior and posterior nostrils, respectively; one or two pores of postotic canal on pterotic and between pterotic and posttemporosupracleithrum; body lateral line represented only by portion posterior to head, with one or two pores; head and body pit lines absent in most individuals; peritoneum and wall of pleuroperitoneal cavity blackish due to presence of many melanophores; eye small and supported by membranous outgrowth of hyomandibula and by membrane; and ceratobranchial and epibranchial bones without ossified gill rakers. The short dorsal fin has 5 precurrent rays plus 6 to 9 principal rays; anal fin has 4 precurrent rays and 6 to 8 principal rays.
Body shape (shape guide): elongated.
身体皮肤的整个表面壶腹器官穿孔的经由小孔; 头部的知觉管系统只出现被鼻骨隔绝的眶上管的前部了，而且耳后管的在后部部分被 pterotic 与 posttemporosupracleithrum 隔绝了; 二个最前面眶上管的孔呈现中间的对前面与后面的鼻孔, 分别地; 在 pterotic 上的耳后管的一或二个孔与在 pterotic 与 posttemporosupracleithrum 之间; 只出现部分的身体侧线在头部后面, 有一或二个孔; 头部与身体凹洞线不存在于大多数的个体; 腹膜与腹腔的墙壁黑色的由于有许多黑色素细胞; 眼小的而且由上颚的膜状自然的发展支撑了与藉着薄膜; 而且没有钙化的鳃耙的角鳃骨与上鳃骨。 短的背鳍加上 6 到 9个主要的鳍条有 5个 precurrent 鳍条; 臀鳍有 4个 precurrent 鳍条与 6 到 8个主要的鳍条。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: Mendoza 河流域。
Arratia, G., 1998. Silvinichthys, a new genus of trichomycterid catfishes from the Argentinian Andes, with redescription of Trichomycterus nigricans. Ichthyol. Explor. Freshwat. 9(4):347-370. (Ref. 33071)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (参考文献
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00279 - 0.01564), b=2.99 (2.79 - 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): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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