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Anguilliformes (Eels and morays) >
Ophichthidae (Snake eels) > Ophichthinae
Etymology: Ophichthus: Greek, ophis = serpent + Greek, ichthys = fish (Ref. 45335); olivaceus: Name from Latin, referring to its coloration, olivaceus.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien bathydemersaal; diepte 35 - 63 m (Ref. 123091). Tropical
Western Indian Ocean: Red Sea, southern Saudi Arabia.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 75.6 cm TL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Wervels: 141 - 145. This speies is distinguished by the following characters: moderately elongate species, tail length 46.3-46.4%, head length 9.0-10.4%, and body depth at gill opening 3.6-4.2% of total length; dorsal-fin origin is above the middle of pectoral fin; pectoral fin rounded, elongate and well-developed; posterior nostril within upper lip, not visible externally; upper lip with two minute barbels, the first between anterior and posterior nostrils, the second beneath mid orbit; pores distinct, supraorbital pores 1 + 4, infraorbital pores 4 + 2, preopercular pores 5 + 3; teeth small, conical, uniserial on vomer and jaws; total vertebrae 141-145, mean vertebral formula 12-67.5-143. Colouration: dark tan with olivaceous hue dorsally and laterally, tan ventrally on tail and pale yellow ventrally on trunk; above pectoral-fin base are two pale yellow smudges; snout and lower jaw dark brown; throat pale orange-yellow, preopercle pale yellow and postorbital area pale yellow with numerous dark brown dots; dorsal fin and anal fins olivaceous; tip of tail dark red (Ref. 123091).
Cross section: oval.
Known from the holotype and paratype, trawled from a soft substratum from 35-63 m depth off The largest known specimen is 75.6 cm TL ripe female with packed ovaries, with ova ca. 1 mm in diameter (Ref. 123091).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
McCosker, J.E., S.V. Bogorodsky, A.O. Mal and T.J. Alpermann, 2020. Description of a new snake eel Ophichthus olivaceus (Teleostei: Anguilliformes, Ophichthidae) from the Red Sea. Zootaxa 4750(1):31-48. (Ref. 123091)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00093 (0.00041 - 0.00214), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 4.0 ±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): Moderate to high vulnerability (50 of 100).
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