Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Ophichthidae
(Snake eels) > Ophichthinae
Etymology: Ophichthus: Greek, ophis = serpent + Greek, ichthys = fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range - 360 m (Ref. 84366), usually - m (Ref. ). Temperate; 0°C -
Northwest Pacific: Kumano-nada, off Owase, Mie Prefecture, Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 33.2 cm TL male/unsexed; (Ref. 12708)
Morphology | Morphometrics
Vertebrae: 160. This moderately elongate species of Ophichthus, subgenus Coecilophis is distinguished by the following characters: tail 55%, head 11.0% of total length and body depth at gill openings about 4% of TL; origin of dorsal-fin 3.5 pectoral-fin lengths behind head which is more than 1 head length behind gill opening; elongate pectoral fins, non-lanceolate; posterior margin or orbit in advance of rictus; posterior nostril a hole above upper lip is covered by a flap; conspicuous head pores, SO 1+4, IO 4+2, POM 3+6; numerous small, conical teeth, biserial on jaws, uniserial posteriorly on vomer, biserial anteriorly; pale in color, slightly darker dorsally, snout tip and lower jaw darker, fins and anterior nostrils pale, posterior region of anal-fin base black; vertebral formula 29/60/160 (Ref. 84366).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Asano, H., 1987. A new ophichthid eel, Ophichtus megalops, from the Kumano-nada, Japan. Jap. J. Ichthyol. 34(2):135-137. (Ref. 12708)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00129 (0.00054 - 0.00308), b=2.92 (2.72 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .