Actinopterygii (ray-finned fishes) > Notacanthiformes
(Halosaurs and deep-sea spiny eels) > Halosauridae
Etymology: Aldrovandia: Taken from Ulisse Aldrovandi, (1522-1605), a Renaissance naturalist and physician noted by his systematic and accurate observations of plants and animals (Ref. 45335). More on author: Goode, Bean.
Environment / Climate / Range
Marine; bathypelagic; depth range 460 - 2560 m (Ref. 4448). Deep-water; 36°N - 9°N
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 55.0 cm TL male/unsexed; (Ref. 4448)
Morphology | Morphometrics
Few gill rakers on the 1st branchial arch. Short maxillary spine and the broad and scaleless interorbital region. Peculiar structure of lateral line. Grayish white in color (Ref. 37108).
Eastern Atlantic: Western Sahara to Sierra Leone. Western Atlantic: Virginia, USA to the Lesser Antilles, mainly the Gulf of Mexico and Caribbean. The only record off Nova Scotia is doubtful.
Found on the continental slope and rise. Feeds mainly on benthic organisms which includes pelecypods, amphipods, mysids, polychaetes and ophiuroids (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. 96402)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00087 (0.00033 - 0.00232), b=3.07 (2.84 - 3.30), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.40 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (45 of 100) .