Actinopterygii (ray-finned fishes) > Anguilliformes
(Eels and morays) > Synaphobranchidae
(Cutthroat eels) > Ilyophinae
Etymology: Ilyophis: Greek, ilyos, -ou = cave + Greek, ophis = serpent (Ref. 45335). More on author: Gilbert.
Environment / Climate / Range
Marine; bathypelagic; depth range 450 - 3120 m (Ref. 26895). Deep-water; 3°C - 5°C (Ref. 26895), preferred ?; 51°N - 42°S, 180°W - 180°E
Atlantic, Indian and Pacific (Ref. 5235). Circumtropical, except the Northeast Pacific (Ref. 26895).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 58.0 cm TL male/unsexed; (Ref. 3973)
Morphology | Morphometrics
Dark brown tinged with violet on snout (Ref. 3973).
Found along the slope and upper abyssal zone. Feeds on annelids and crustaceans.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Smith, D.G. and P.H.J. Castle, 1990. Synaphobranchidae. p. 195-198. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 5235)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: of no interest
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [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), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.37 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100) .