Myxines (hagfishes) >
Myxiniformes (Hagfishes) >
Myxinidae (Hagfishes) > Myxininae
Etymology: Notomyxine: notos (Gr.) south, i.e., a southern genus related to Myxine (restricted to the Antarctic Ocean) (See ETYFish); tridentiger: tri- (L.), three; dentis (L.), tooth; -ger, Latin suffix meaning to bear or carry, i.e., having three united anterior oral cusps (See ETYFish).
More on author: Garman.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal; non migrateur; profondeur 11 - 106 m (Ref. 31276). Temperate
Southeast Pacific and Southwest Atlantic: southern coasts of South America.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 57.5 cm TL mâle / non sexé; (Ref. 31276)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies (Ref. 51361 ).
Fernholm, B., 1998. Hagfish systematics. p. 33-44. In J.M. Jørgensen, J.P. Lomholt, R.E. Weber and H. Malte (eds.) The biology of hagfishes. Chapman & Hall, London. 578 p. (Ref. 31276)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00115 (0.00044 - 0.00300), b=3.03 (2.80 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.4 ±0.6 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate to high vulnerability (49 of 100). 🛈 |