Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Ophichthidae
(Snake eels) > Ophichthinae
Etymology: Ichthyapus: Greek, ichthys = fish + Greek, a = without + Greek, pous = feet; insularis: From the Latin word insularis, of an island, referring to its apparent endemic location. More on author: McCosker.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range - 1 m (Ref. 76875), usually - m (Ref. ). Tropical; 0°C -
Southeast Atlantic: known only from Acension Is.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 42.7 cm TL male/unsexed; (Ref. 76875)
Morphology | Morphometrics
Vertebrae: 121 - 126. An elongate finless species of sphagebranchin (sensu McCosker 1977)ophichthine with: tail 57-60% and head 9- 11% of total length; 4 preopercular pores and 5 pores in supratemporal canal; teeth conical, uniserial on jaws and vomer; body mostly colorless in preservative; and mean vertebral formula -45-123.5, total vertebrae 121-126.
Collected among rocks and sand.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
McCosker, J.E., 2004. A new species of finless snake eel (Anguilliformes: Ophichthidae) from Ascension Island, with comments on Ichthyapus acutirostris. Proc. Calif. Acad. Sci. 55(7):169-173. (Ref. 76875)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [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
): 3.7 ±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
): Low to moderate vulnerability (27 of 100) .