Actinopteri (ray-finned fishes) > Alepocephaliformes
(Slickheads and tubeshoulders.) > Alepocephalidae
Etymology: Aulastomatomorpha: Greek, aulos = flute + Greek, stoma = mouth + Greek, morphe = shape (Ref. 45335).
More on author: Alcock.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 1717 - 2020 m (Ref. 40779). Deep-water
Indo-West Pacific: Gulf of Oman, Arabian Sea, Bay of Bengal, and Coral Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm SL male/unsexed; (Ref. 40779); 20.4 cm SL (female)
Morphology | Morphometrics
soft rays: 33 - 41;
Vertebrae: 52. Head naked, covered with soft, tough skin. Cephalic lateralis system with 5 pores each in the supraorbital, preopercular, and mandibular series and 4 in posttemporal series. No trace of supratemporal commissure. Two pores joined by a short, dark canal on lachrymal on each side of snout above the maxillae. Snout elongate with upper jaw shorter than the lower jaw. Head narrow. Body with small, barely or non-imbricate scale pockets. Branchiostegal rays 5 (?). Pyloric caeca 4 (Ref. 40779).
Found on the continental slope (Ref. 75154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Markle, D.F. and Y.I. Sazonov, 1996. Review of the rare deep-sea genus, Aulastomatomorpha (Teleostei: Salmoniformes), with a discussion of relationships. Copeia 1996(2):497-500. (Ref. 40779)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 2.4 - 3.9, mean 2.7 °C (based on 136 cells).
Phylogenetic diversity index (Ref. 82804
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00162 - 0.00710), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (24 of 100).