分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 1 - 10 m (Ref. 57884). 熱帶
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.
中太平洋: 到萬那度南部，斐濟，東加與美屬薩摩亞的新加勒多尼亞; 暫時地聖克魯斯群島 (Vanikolo) ，萬那度 (淺堆島) ，鳳凰島 (吉爾巴斯) ，沃利斯島與大溪地島。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 57884); 5.8 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 71 - 80; 臀鰭軟條: 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).
這種特徵為那在:之後 脊椎骨 11+(28)29-31=(39)40-42 ，背鰭鰭條 71-80, 臀鰭棘條 57-66; 小的眼 (1.3-2.3% SL); 外部的 pseudoclasper 有大的耳朵-葉的延長,腹地打開; 內部的 pseudoclasper 與外部的 pseudoclasper 分離,藉由支持者, 形成一個寬的, 末梢部地擴大不被使鰓蓋傾向, 有短的刺; 在頰上的狹窄的鱗片小區塊, 沒有鱗片在鰓蓋上; 頭部輪廓細長的; 對高度比 1.9-2.0 的耳石長度.(參考文獻 57884)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
中太平洋: 到萬那度南部，斐濟，東加與美屬薩摩亞的新加勒多尼亞; 暫時地聖克魯斯群島 (Vanikolo) ，萬那度 (淺堆島) ，鳳凰島 (吉爾巴斯) ，沃利斯島與大溪地島。
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)
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Estimates based on models
Preferred temperature (Ref.
123201): 24.7 - 29.4, mean 27.7 °C (based on 552 cells).
Phylogenetic diversity index (Ref.
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).
營養階層 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
