Teleostei (teleosts) > Ophidiiformes
(Cusk eels) > Carapidae
(Pearlfishes) > Carapinae
Etymology: Echiodon: Greek, echieys, eos = a little viper + Greek, odous = teeth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 400 - 1441 m (Ref. 75877). Deep-water
Widely distributed in the subtropical and temperate waters of the southern hemisphere (off New Zealand, south of Australia, off southern Chile, off Argentina and the Falklands and southern Brazil). Has been recently found at the eastern slope off South Georgia in the Antarctic region.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 41.0 cm TL male/unsexed; (Ref. 6347)
Morphology | Morphometrics
soft rays: 179 - 190. Eel-like, shallow body depth; 1 to several symphyseal fangs on dentary and premaxilla; lacking cardiform teeth, pelvic fins, and swim bladder rocker bone; a patch of ridges posteriorly on the ventral surface of the swim bladder (Ref. 34024). Precaudal vertebrae 25-29 (Ref. 34024).
Uncommon species (Ref. 34024).
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. 126983)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 1.9 - 8.6, mean 5.6 °C (based on 334 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5001 [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
): 3.8 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (31 of 100).
Nutrients (Ref. 124155
): Calcium = 30.7 [18.2, 66.1] mg/100g; Iron = 0.462 [0.240, 0.890] mg/100g; Protein = 16.1 [13.6, 18.4] %; Omega3 = 0.326 [0.165, 0.657] g/100g; Selenium = 25.9 [10.5, 58.8] μg/100g; VitaminA = 9.81 [2.09, 42.43] μg/100g; Zinc = 0.449 [0.301, 0.669] mg/100g (wet weight);