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Scombriformes (Mackerels) >
Trichiuridae (Cutlassfishes) > Lepidopodinae
Etymology: Evoxymetopon: Greek, eu = good + Greek, oxys = sharpen + Greek, metopon = brow (Ref. 45335); macrophthalmus: Specific name refers to the large eye of the species.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien benthopelagisch. Deep-water
Northwest Pacific: off Okinawa I., Ryukyu Is., Japan.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 162 cm SL mannelijk / geslacht onbekend; (Ref. 58273)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 90; Wervels: 94. Distinguished from other species with the following characters: upper head profile convex; posterior confluence of frontal ridges not elevated at the nape, resulting in the absence of the sagittal crest; eye 4.5 times in HL; lower hind margin of opercle broadly rounded; pelvic fins reduced to scalelike structure with 2 soft rays on posterior process of basipterygium, its origin below 9th dorsal-fin element; first anal spine single, oval, scalelike, and originating a short distance behind vent (opposite the 34th dorsal-fin soft ray), anterior anal-fin soft rays minute and embedded, barely penetrating skin and not visible externally, while posterior fin supporting rays enlarged and visible externally; anal-fin rays 15, externally visible; dorsal-fin elements 90, 1st spine elongate, sword-shaped, and finely ribbed; pectoral fin rays 12, with shorter anterior and longer posterior rays extending above the lateral line; first gill arch with upper gill rakers 9; vent at about 50% TL; total vertebrae 94; horizontal distance between posterior margin of eye and origin of first dorsal-fin spine short (8.5% HL); preanal length (PL) 49% TL; HL 27.5% PL; upper jaw length 9.5% PL; predorsal length 21% PL (Ref. 58273).
Body shape (shape guide): elongated.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Chakraborty, A., T. Yoshino and Y. Iwatsuki, 2006. A new species of scabbardfish, Evoxymetopon macrophthalmus (Scombroidei: Trichiuridae), from Okinawa, Japan. Ichthyol. Res. 53(2):137-142. (Ref. 58273)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00275 (0.00105 - 0.00724), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
4.4 ±0.7 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
High vulnerability (62 of 100). 🛈 |