分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Loricariinae
Etymology: longicauda: Derived from the Latin longus, meaning long, and cauda, meaning tail. This makes reference to the shape of the caudal peduncle.
Eponymy: Charles Frederick Hartt (1840–1878) was a Canadian geologist, palaeontologist and naturalist, who was a member of the Thayer Expedition (1865–1866) to Brazil, a country in which he was a specialist. [...] (Ref. 128868), visit book page.
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.
South America: mountainous areas in the Trinité and Balenfois massifs in northern French Guiana.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 5.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 90209)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 7; 臀棘: 1; 臀鳍软条: 5. Distinguished from all other congeneric species except Harttiella pilosa by the frequent presence of few small preanal plates (vs absence of preanal plates), and by its specific barcode sequences (JF292277, JF292278, JF292279, JF292280, JF292282, JF292283). Differs from Harttiella pilosa by having the pectoral girdle wider than pelvic girdle (vs pectoral girdle approximately as wide as the pelvic girdle). Six unique morphometric variables distinguish Harttiella longicauda from all other congeners: shorter pelvic
spines (mean = 19.36 ± 1.17% of SL vs 20.55 ± 0.36 < mean < 24.67 ± 1.46% of SL); smaller
body width at eighth postdorsal plate (mean = 9.29 ± 1.07% of SL vs 10.28 ± .98 < mean < 11.48 ± 0.94% of SL); body width at fourteenth postdorsal plate (mean = 3.99 ± 0.51% of SL vs 4.72 ± 0.62 < mean < 5. 59 ± 0.70% of SL); minimum caudal peduncle depth (mean = 2.53 ± 0.18% of SL vs 3.24 ± 0.2 1 < mean < 4.86 ± 0.43% of SL); interorbital width (mean = 33.82 ± 2.03% of HL vs 35.25 ± 1.21 < mean < 38.20 ± 2.03% of HL), and head depth at internostril (mean = 33.19 ± 1.76% of HL vs 33.89 ± 2.22 < mean < 36.74 ± 4.00% of HL (Ref. 90209).
Body shape (shape guide): elongated.
Found in mountain areas. Sympatric with Guyanancistrus aff. brevispinis, Krobia itanyi, Rhamdia quelen, Ancistrus cf. leucostictus, Lithoxus planquettei, Characidium fasciadorsale, Melanocharacidium cf. dispilomma, and Rineloricaria aff. stewarti in the Trinité Mountains (Ref. 90209).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Covain, R., S. Fisch-Muller, J.I. Montoya-Burgos, J.H. Mol, P.-Y. Le Bail and S. Day, 2012. The Harttiini (Siluriformes, Loricariidae) from the Guianas: a multi-table approach to assess their diversity, evolution, and distribution. Cybium 36(1):115-161. (Ref. 90209)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
易受伤害 (VU) (B1ab(iii)); Date assessed: 14 January 2021
人类利用
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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 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00185 - 0.00857), b=3.11 (2.93 - 3.29), 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): 2.7 ±0.2 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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