Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Congridae
(Conger and garden eels) > Congrinae
Etymology: Gnathophis: Greek, gnathos = jaw + Greek, ophis = serpent (Ref. 45335); tritos: tritos = third, i.e., the third species of Gnathophis discovered in the western Atlantic.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 458 - 567 m (Ref. 40828). Deep-water
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Central Atlantic: Straits of Florida.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Morphology | Morphometrics
Vertebrae: 136 - 138. Shorter air bladder compared to the other two western Atlantic species - G. bathytopos and G. bracheatopos. Differs from the former in lacking the extra several elevated lateral-line pores, having only one or two postorbital pores, only five supraorbital pores, only nine preoperculomandibular pores, and having a pale stomach.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Smith, D.G. and R.H. Kanazawa, 1977. Eight new species and a new genus of congrid eels from the western north Atlantic with redescriptions of Ariosoma analis, Hildebrandia guppyi and Rhechias vicinalis. Bull. Mar. Sci. 27(3):530-543. (Ref. 40828)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 8.4 - 14, mean 10.9 °C (based on 29 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00062 (0.00028 - 0.00135), b=3.19 (3.00 - 3.38), 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
): Moderate vulnerability (38 of 100) .