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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Photonectes: Greek, photos = light + Greek, nekton = swimmer (Ref. 45335); xenopogon: Name from Greek words 'xenos' for alien and 'pogon' for beard, referring to the barbel structure of the new species which does not resemble those of other members of subgenus Trachinostomias, but distant by other characters P. dinema.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina djupbottenlevande. Deep-water
Western Central Pacific: Philippines.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 16.8 cm SL hane/ej könsbestämd; (Ref. 125186)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 18; Mjukstrålar i analfenan: 23; Ryggkotor: 59 - 62. This species is distinguished by the following characters: pectoral with one long and strong ray that consists of two tightly connected halves; uniserial praemaxillare dentition; vertebrae 59-60; postorbital organ 1.0% (immature male) or 2.4% (mature male) of SL; the chin barbel is relatively short (4.8% SL for SL 11.0 cm) with terminal bulb not protruding beyond the stem; internal pigmentation and flat non-pigmented asymmetrically bifurcated terminal filament on its tip (Ref. 125186).
Cross section: compressed.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Prokofiev, A.M., 2019. Materials for revision of the genus Photonectes (Melanostomiidae). J. Ichthyol. 59(4):449-476. (Ref. 125186)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2)
Hot mot människor
Harmless
Mänskliga användningsområden
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Särskilda rapporter
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00116 - 0.00786), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (11 of 100).
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