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: Alionematichthys: Name from Latin alius meaning the other or different, and nematichthys, the stem of the genus name Dinematichthys, to which this genus is most similar; samoaensis: Named for its type locality, American Samoa; an adjective.
More on authors: Møller & Schwarzhans.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類.
Eastern Central Pacific: American Samoa.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 5.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 81230); 5.9 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) : 73 - 80; 臀鰭軟條: 57 - 64; 脊椎骨: 40 - 43. This species is distinguished by the following characters: D 73-80; A 57-64; moderately large eyes (2.2-2.8%SL); slender body; many cirri on snout; scales on cheeks, none above the opercular spine; with upper preopercular pore; funnel-shaped posterior nostril; broad-based outer pseudoclasper, not extending beyond the hood when in resting position, with thick distal knob on the inner face, while the inner one about half size of outer pseudoclasper, anterior thorn slightly bent, posterior lobe broader than the anterior one; vertebrae 11-12 + 29-30 = 40-43 (Ref. 81230).
A gravid female, 4.6 cm SL (CAS 81486) with ca. 100 embryos, 0.46 cm TL in length; each embryo with 3 short pigmented rows on the posterior part of the body (Ref. 81230).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Møller, P.R. and W. Schwarzhans, 2008. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-west Pacific, Part IV. Dinematichthys and two new genera with descriptions of nine new species. The Beagle 24:87-146. (Ref. 81230)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 15 August 2019
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [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).
