Actinopterygii (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Ophidiidae
(Cusk-eels) > Neobythitinae
Etymology: Eretmichthys: Greek, eretmos, -ou = with oars (Ref. 45335). More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 1355 - 2820 m (Ref. 34024). Deep-water
Indian Ocean: between 9°49'S and 14°51'S, and between 60°42'E and 114°53'E. Western Pacific: Gulf of Tomini, Sulawesi, Indonesia and off Japan. Eastern Pacific: off Colombia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 41.0 cm SL male/unsexed; (Ref. 34024)
Morphology | Morphometrics
soft rays: 104;
Vertebrae: 68. Snout inflated; eyes much smaller than snout; opercular spine absent; preopercle without spines and posteriorly expanded almost reaching posterior margin of opercle; lower pectoral radial with ventral process, lower pectoral fin rays extended well beyond anus in ripe males but not in unripe males and females; median basibranchial tooth patch 1; pseudobranchial filaments 2; (Ref. 34024).
Uncommon species (Ref. 34024). Oviparous, with oval pelagic eggs floating in a gelatinous mass (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2 - 4, mean 2.6 (based on 1037 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100) .