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Myxini (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Rubicundinae
Etymology: Rubicundus: Latin for red or ruddy, referring to reddish coloration of all species. (See ETYFish); eos: After Eos, goddess of morning-glow, referring to its pink color. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathydemersal; non-migratory; depth range ? - 1013 m (Ref. 26686). Deep-water

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southwest Pacific: Tasman Sea, west of New Zealand.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 66.5 cm TL (female)

Short description Identification keys | Morphology | Morphometrics

Gill apertures 5. Total slime pores 128-130.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

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 ).

Main reference Upload your references | References | Coordinator | Collaborators

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)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 09 November 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (47 of 100).

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Rubicundus eos (Fernholm, 1991)