Myxines (hagfishes) >
Myxiniformes (Hagfishes) >
Myxinidae (Hagfishes) > Myxininae
Etymology: Myxine: Ancient Greek word for a slimy fish: myxa, slime; -inus, one who, referring to copious amounts of slime produced by M. glutinosa (See ETYFish); garmani: In honor of American ichthyologist-herpetologist Samuel Garman (1843-1927), Harvard University, for his “excellent work” on Myxine (See ETYFish).
Eponymy: Dr Samuel Trevor Walton Garman (1843–1927) was an American naturalist, most noted as an ichthyologist and herpetologist. [...] (Ref. 128868), visit book page.
More on authors: Jordan & Snyder.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; non migrateur; profondeur 500 - 800 m (Ref. 31276). Deep-water
Northwest Pacific: Japan.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 54.0 cm TL mâle / non sexé; (Ref. 31276)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Six gill pouches. Ventral finfold well developed. Fused cusps 3/2, total cusps 42-46. Total slime pores 95-101. Anterior part of head lighter color than body (Ref. 51420).
Life cycle and mating behavior
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 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 5.3 - 9.7, mean 7.6 °C (based on 11 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00115 (0.00044 - 0.00298), 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 (Ref.
69278): 3.4 ±0.6 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
