Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Synaphobranchidae
(Cutthroat eels) > Synaphobranchinae
Etymology: Synaphobranchus: Greek, syn, symphysis = grown together + Greek, aphoo, aphiemi = to throw + Greek, brangchia = gill (Ref. 45335); calvus: Named "calvus", Latin for bald, referring to scaleless head.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 750 - 2000 m (Ref. 75762), usually - m (Ref. ). Tropical; 0°C - ; 11°S - 23°S (Ref. 75762)
South Atlantic: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 68.5 cm TL male/unsexed; (Ref. 75762)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Melo, M.R.S., 2007. A new synaphobranchid eel (Anguilliformes: Synaphobranchidae) from Brazil, with comments on the species from the Western South Atlantic. Copeia 2007(2):315-323. (Ref. 75762)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 3.3 - 4.1, mean 3.7 °C (based on 19 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00071 (0.00030 - 0.00165), b=3.12 (2.92 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.5 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .