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). More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 290 - 2400 m (Ref. 50610), usually 400 - 500 m (Ref. 26999). Deep-water; 3°C - 11°C (Ref. 26895); 44°N - 42°S
Circumglobal, except the northeast Pacific (Ref. 26895). Eastern Atlantic: Liberia to northern Angola (Ref. 5235).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 160 cm TL male/unsexed; (Ref. 26895)
Morphology | Morphometrics
Found on the upper continental slope (Ref. 50610, 75154), over rocky substrata (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sulak, K.J. and Y.N. Shcherbachev, 1997. Zoogeography and systematics of six deep-living genera of synaphobranchid eels, with a key to taxa and description of two new species of Ilyophis. Bull. Mar. Sci. 60(3):1158-1194. (Ref. 26895)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
Estimates based on models
Preferred temperature (Ref. 115969
): 7.1 - 13.2, mean 9.7 °C (based on 287 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00065 (0.00033 - 0.00128), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 4.4 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming fecundity > 100).
Vulnerability (Ref. 59153
): Very high vulnerability (80 of 100) .