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: Scleronema: Greek, skleros = hard + Greek,nema = filament (Ref. 45335); guapa: Name from a regional adjective used to describe a beautiful person (‘guapa’), an allusion to the beauty 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 : 4.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 122319)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 7 - 10; 臀鳍软条: 5 - 6; 脊椎骨: 35 - 36. This species is distinguished from all its congeners by having the lateral surface of body with diffuse, scattered brown spots, sometimes grouped forming irregular and small marks at midlateral line (vs. lateral surface of body with a midlateral line of black or brown rounded blotches); further differs macanuda and operculatum by hving the maxillary barbel longer than half-length of the head (vs. smaller than half-length of the head); tips of pectoral-fin rays not extending beyond the interadial membrane (vs. extending beyond the interadial membrane); skin flap in the posterior margin of the opercle rounded and short (vs. skin flap pointed and long); fleshy flap at the base of the maxillary barbel located posteriorly, thin, restricted to the maxilla and distal margin is rounded (vs. fleshy flap located anteriorly, thick, prolonged up to the snout and with distal margin straight); caudal fin uniformly brown (vs. caudal fin with a transversal black bar distally); differs further from ibirapuita, milonga and teiniagua by having the pore s3 of the supraorbital line of the laterosensory system (vs. pore s3 absent) (Ref. 122319).
Cross section: oval.
This species inhabits rivers and streams, with fine sandy bottoms. Often collected syntopically with S. operculatum (Ref. 112319).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Ferrer, J. and L.R. Malabarba, 2020. Systematic revision of the Neotropical catfish genus Scleronema (Siluriformes: Trichomycteridae), with descriptions of six new species from Pampa grasslands. Neotrop. Ichthyol. 18(2):1-81. (Ref. 122319)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
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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): PD
50 = 0.5020 [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): 3.1 ±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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