Actinopteri (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Carapidae
(Pearlfishes) > Carapinae
Etymology: Echiodon: Greek, echieys, eos = a little viper + Greek, odous = teeth (Ref. 45335); dawsoni: Named for Charles E. Dawson (Ref. 6347).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 60 - 180 m (Ref. 10704). Tropical
Western Central Atlantic: northeastern Gulf of Mexico and the Straits of Florida. Northwest Atlantic: Canada (Ref. 5951).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.2 cm TL male/unsexed; (Ref. 6347)
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). 39-43 anal fin rays in front of vertical through back of 30th vertebrae; 11-12 anal fin rays in front of vertical through dorsal fin origin (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. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.4 - 25.3, mean 7.7 °C (based on 239 cells).
Phylogenetic diversity index (Ref. 82805
= 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
): 3.5 ±0.5 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .