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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); rubicundus: Latin for red or ruddy, referring to its pink body color (See ETYFish).

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

Marine; bathydemersal; non-migratory (Ref. 85332); depth range ? - 800 m (Ref. 85332) (Ref. 85332). Deep-water; 26°N - 24°N, 120°E - 122°E (Ref. 85332)

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Western Central Pacific: Philippine Sea, off Taiwan.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 46.4 cm TL male/unsexed; (Ref. 85332)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Branchial slime spores and the gill apertures arranged in a straight line; distances from a branchial slime pore to its immediately preceding and posterior gill apertures similar; the ventral aorta not bifurcated. The body color is pink. 5 gill apertures, not crowded; the presence of a pair of small nasal papillae on the roof of the nasal tube; a robust body; 100-102 total slime pores (prebranchial 16 or 17, branchial 3 or 4, trunk 62, tail 19); 3 multicusps in outer row, 7 unicusps, 2 multicusps in inner row, 7 unicusps; eyespot absent.

Only one specimen known.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Kuo, C.-H., S.-C. Lee and H.-K. Mok, 2010. A new species of hagfish Eptatretus rubicundus (Myxinidae: Myxiniformes) from Taiwan, with reference to its phylogenetic position based on its mitochondrial DNA sequence. Zool. Stud. 49(6):1-23. (Ref. 85332)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 20 December 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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): 4.1 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (36 of 100).

Rubicundus rubicundus (Kuo, Lee & Mok, 2010)