分類 / Names
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Aulopiformes (Grinners) >
Synodontidae (Lizardfishes) > Synodontinae
Etymology: Trachinocephalus: Greek, trachys, -eia, -ys = rough + Greek, kephale = head (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態学
海; 汽水性の 関連する礁; 深さの範囲 3 - 388 m (Ref. 58302), usually 40 - 183 m (Ref. 110386). Tropical
Indo-Pacific: African coast of the Indian Ocean and the Red Sea to Hawaii in the
central Pacific Ocean.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm ?, range 19 - ? cm
Max length : 22.8 cm SL オス/雌雄の選別がない; (Ref. 110386)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 11 - 14; 臀鰭: 13 - 18. This species is distinguished from its congeners by the following characters: snout length (LSn) 40.4-108.5% eye diameter (DE), mean 74.8% (vs. mean 40.1% in T. gauguini and 79.1% in T. trachinus); LSn 15.0-26.0% body depth (DB), mean 21.2 (vs. mean 14.7% in T. gauguini); interorbital width 5.2-12.0%, mean 8.7% LH (vs. mean 5.6% in T. gauguini); DE 11.0-22.6% LH, mean 16.6% (vs. mean 19.6% in T. gauguini and 15.7% in T. myops); length of the last dorsal-fin ray 8.7-11.8% LS, mean 10.1% (vs. mean 10.8% in T. gauguini and 9.4% in T. myops); anal-fin rays 13-18, mode 16 (vs. mode 14 in T. gauguini and 15 in T. myops); pectoral-fin rays 11-13, mode 12 (vs. mode 11 in T. gauguini); predorsal scales 14-18, mode 16 (vs. mode 17 in T. myops). differs further from T. gauguini and T. myops by the deep mitochondrial distances (15.7-19.0 and 15.1-17.8%, respectively) (Ref. 110386).
Occurs in estauries and inshore waters to 200 m (Ref. 110386); benthic at 3-388 m (Ref. 58302). Found near shore above 40 m over sandy bottoms of deep outer reef slopes (Ref. 11230). Reported to be common in estuaries (Ref. 11228, 48635). Rest on or more often burrow into substrate, leaving eyes exposed and when disturbed, it may swim a short distance but quickly buries itself again (Ref. 48635). Feed on fishes (Ref. 5213) and small crustaceans (Ref. 36558).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Polanco, F.A., P.A. Acero and R. Betancur-R, 2016. No longer a circumtropical species: revision of the lizardfishes in the Trachinocephalus myops species complex, with description of a new species from the Marquesas Islands. J. Fish Biol. 89(2):1302-1323. (Ref. 110386)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
用具
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02291 (0.01286 - 0.04082), b=3.39 (3.23 - 3.55), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (Ref.
69278): 4.2 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (18 of 100).