分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); tongaensis: Named for Tonga where the majority of the specimens were taken.
More on authors: Schwarzhans, Møller & Nielsen.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋 礁区鱼类; 深度上下限 1 - 10 m (Ref. 57884).
Central Pacific: New Caledonia to southern Vanuatu, Fiji, Tonga and Samoa; tentatively Santa Cruz Islands (Vanikolo), Vanuatu (Banks Islands), Phoenix Islands (Kiribati), Wallis Island and Tahiti.
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 4.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 57884); 5.8 cm SL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 71 - 80; 臀鳍软条: 57 - 66; 脊椎骨: 39 - 42. This species is characterized by the following: vertebrae 11+(28)29-31=(39) 40-42, dorsal fin rays 71-80, anal fin rays 57-66; small eyes (1.3-2.3% SL); outer pseudoclasper with large ear-lobe extension, ventrally opening; inner pseudoclasper free from outer pseudoclasper, with supporter, forming a broad, distally expanded, not inclined flap, with short thorn; narrow scale patch on cheek, no scales on operculum; head profile slender; otolith length to height ratio 1.9-2.0 (Ref. 57884).
Body shape (shape guide): elongated.
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
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特别资料
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基于模型的估算
首选温度 (参考文献
123201): 24.7 - 29.4, mean 27.7 °C (based on 552 cells).
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=0.00389 (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): 3.3 ±0.5 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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