Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Ophichthidae
(Snake eels) > Ophichthinae
Etymology: Apterichtus: From the Greek απτερόν (apteron), without fins, and ίχθύς (ichtus, more correctly written ichthys;
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 80 - 150 m (Ref. 4455), usually - m (Ref. ). Tropical; 0°C -
Eastern Atlantic: Cape Verde Islands off Senegal, Sierra Leone, and Biafra.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 49.5 cm TL male/unsexed; (Ref. 4455)
Morphology | Morphometrics
Vertebrae: 147 - 151. This species is distinguished by the following characters: tail 1.6-1.7, head 16-20, and body depth 63-71 in total length; preopercular pores 3; pores in supratemporal canal 7; conical teeth, uniserial on jaws and vomer (0-2 vomerine teeth); body coloration in alcohol is pale ochre ventrally, slightly darker dorsally; total vertebrae 147-151 (mean 148.6) (n= 5) (Ref. 101270)..
Burrows in sand or mud on the continental shelf (Ref. 4455).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Leiby, M., 1990. Ophichthidae. p. 176-192. 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. 4455)
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
): 15.2 - 16.9, mean 15.9 °C (based on 9 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00129 (0.00054 - 0.00308), b=2.92 (2.72 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.7 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
): Low to moderate vulnerability (30 of 100) .