Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
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;
masculine), fish.; dunalailai: Named after the Fijian name for a 'small eel'; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 291 - 450 m (Ref. 101270), usually - m (Ref. ). Tropical; 0°C -
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Central Pacific: Vanuatu and Fiji.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 28.9 cm TL male/unsexed; (Ref. 101270)
Morphology | Morphometrics
Vertebrae: 160. This elongate species is distinguished by the following characters: tail 1.8-2.0, head 16-17, and body depth 71 in total length; preopercular pores 3 and pores in supratemporal canal 5; teeth are conical, uniserial on jaws and vomer, with 2-3 vomerine teeth; colouration, when preserved body is mostly pale with a fine brown sparse speckling on body and tail; MVF 70-160, total vertebrae 160 (Ref. 101270).
Specimens caught using a benthic dredge. One paratype with the tail missing is assumed to be approximately 33 cm TL by extrapolation (Ref. 101270).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
McCosker, J.E. and Y. Hibino, 2015. A review of the finless snake eels of the genus Apterichtus (Anguilliformes: Ophichthidae), with the description of five new species. Zootaxa 3941(1):49-78. (Ref. 101270)
IUCN Red List Status (Ref. 124695)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±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 vulnerability (21 of 100) .