Actinopteri (ray-finned fishes) > Notacanthiformes
(Halosaurs and deep-sea spiny eels) > Halosauridae
Etymology: Halosaurus: Greek, als, alis = salt + Greek, sauros = lizard (Ref. 45335). More on authors: Goode & Bean.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 550 - 1600 m (Ref. 4448), usually - m (Ref. ). Deep-water; 0°C -
Eastern Atlantic: Western Sahara to Mauritania, and the Canary Islands. Western Atlantic: New York, USA to Venezuela, including the Gulf of Mexico and the Caribbean. Reported off the Guianas (Ref. 13608).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 4448)
Scales present on the dorsal surface of the head and one lateral line scale for each myotome. Grayish white with a dark brown checkerboard or net like pattern formed by dark spots on each scale pocket (Ref. 37108).
Inhabits bathyal depths. Feeds on small crustaceans, annelids, mollusks and echinoderms (Ref. 4448).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sulak, K.J., 1990. Halosauridae. p. 126-132. 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. 4448)
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
): 4.2 - 10, mean 6.5 °C (based on 275 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00087 (0.00033 - 0.00227), b=3.07 (2.84 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.41 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (35 of 100) .