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); jeffjohnsoni: Named for Jeff Johnson of Queensland Museum, Brisbane.
Eponymy: Jeffrey W ‘Jeff ’ Johnson joined the Queensland Museum, Brisbane as a cadet (1977) and worked as assistant to the Curator of Fishes (1977–1995). [...] (Ref. 128868), visit book page.
More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 2 - 4 m (Ref. 57884). 熱帶
Western Pacific: Western Australia to Queensland, Australia.
西太平洋: 澳洲西部到澳洲的昆士蘭省。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 57884); 7.9 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) : 70 - 77; 臀鰭軟條: 55 - 63; 脊椎骨: 42 - 44. This species is distinguished by the following: Vertebrae (11-) 12+ 30-32=42-44, dorsal fin rays 70-77, anal fin rays 55-63; eyes that are moderately large (2.4-3.0% SL), D/V 6-7; outer pseudoclasper large, twice the length of the inner pseudoclasper, wing-shaped, with narrow base, flat and its posterior part strongly bent backward; inner pseudoclasper almost completely joined to outer pseudoclasper anteriorly, thin, small, with single tip, not extending over anterior part of outer pseudoclasper; narrow scale patch on cheek with 3-5 scale rows on upper cheek, single large scale on operculum above opercular spine, usually covered by mucus and skin; head is slender, elongate (head depth 14-17% SL); first and second lower preopercular pore with separate opening (not fused as in all other species of the genus); otolith slender, length to height ratio 2.2-2.3, otolith length to sulcus length 2.2-2.4, dorsal rim regularly curved without angles (Ref. 57884).
這種被藉著區別那在:之後 脊椎骨 (11-)12+30-32=42-44 ，背鰭鰭條 70-77, 臀鰭棘條 55-63; 眼那是普通大的 (2.4-3.0% SL), D/V 6-7; 外部的 pseudoclasper 大的, 長度兩倍於內部的 pseudoclasper, 翼-形狀的, 有狹窄的基底, 平坦的與強烈地向後地彎曲的它的較後面的部分; 內部的 pseudoclasper 前面地幾乎完全地連到了外部的 pseudoclasper, 細的﹐小的, 有單一個頂端, 不延伸超過外部 pseudoclasper 的前部; 狹窄的鱗片小區塊在上面的頰上頰部有 3-5 鱗片列之上, 單一大規模的在鰓蓋棘上面的鰓蓋上, 通常被黏液與皮膚蓋著; 頭部是細長的, 細長的 (頭部深度 14-17% SL); 具有分離的開口第一與第二的低前鰓蓋骨孔;(不是融合當在所有的其他種的本屬中) 耳石細長的, 高度比 2.2-2.3 的長度， sulcus 長度 2.2-2.4 的耳石長度, 經常地沒有角彎曲的背部的邊緣.(參考文獻 57884)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西太平洋: 澳洲西部到澳洲的昆士蘭省。
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 16 August 2019
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Estimates based on models
Preferred temperature (Ref.
123201): 24.9 - 29.2, mean 28.2 °C (based on 751 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).
![Image of Diancistrus jeffjohnsoni (Johnson\](/images/thumbnails/gif/tn_Dijef_m0.gif "Image of Diancistrus jeffjohnsoni (Johnson\")
