Classification / Names
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Ophidiiformes (Cusk eels) >
Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Porogadus: Greek, poros = porous + Latin, gadus = a fish, cod? (Ref. 45335); dracocephalus: Name from Latin 'draconis' for dragon and 'cephalus' for head, referring to the dragon-like head shape of this species..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; profondeur 1200 - 4634 m (Ref. 125143). Deep-water
Indo-Pacific: Arabian Sea to the Mozambique Channel (none from eastern Indian Ocean) and off southern Japan, Ryukyu Chain, and off the Solomon Islands (disjunct distribution pattern).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 32.0 cm SL mâle / non sexé; (Ref. 125143)
Description synthétique
Morphologie | Morphométrie
This species is distinguished by the following characters: precaudal vertebrae 17-18; first gill arch with long gill rakers 13-15; HL:HD 1.97-2.08; distance of pelvic base to beginning of anal fin 0.72-0.98 times H:; all head spines are strong, present on ethmoidal, lacrimal, prefrontal, interorbital, supraorbital, sphenotic, fifth infraorbital, supratemporal, inner and outer posttemporal, inner and outer preopercular rims; opercular spine is sharp, strong, extruding; maxilla no scales or a single line of scales along upper margin; lower lateral line pores until beginning of anal fin 19-21; vomer with narrow dentition patch (1-2 rows of teeth); palatines with narrow dentition patch (2-5 rows of teeth); otolith with a single, uniform colliculum; OL:OH = 1.4-1.5; OL:TCL = 1.9-2.0 (Ref. 125143).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Schwarzhans, W.W. and P.R. Møller, 2021. Revision of the ‘dragon-head’ cusk eels of the genus Porogadus (Teleostei: Ophidiidae), with description of eight new species and one new genus. Zootaxa 5029(1):001-096. (Ref. 125143)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
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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=0.00380 (0.00165 - 0.00876), b=3.14 (2.93 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).
