Gomon's Hagfish, Eptatretus gomoni Mincarone & Fernholm 2010


Gomon's Hagfish, trawled in 700 metres near Ashmore Reef, off WA

Gomon's Hagfish, trawled in 700 metres near Ashmore Reef, off WA. Source: Source: Dianne Bray / Museum Victoria; Rights CC by (Atribution). License:

Summary:
Known only from two specimens collected off Western Australia. Gomon's Hagfish differs from all other Australian hagfishes in having eight pairs of gill pouches, three-cusp multicusps on the anterior and two-cusp multicusps on the posterior row of cusps.

Cite this page as:
Bray, D.J. 2018, Eptatretus gomoni in Fishes of Australia, accessed 17 Nov 2018, http://fishesofaustralia.net.au/home/species/4764

Gomon's Hagfish, Eptatretus gomoni Mincarone & Fernholm 2010

More Info


Distribution

Endemic to Western Australia from off Shark Bay to off Exmouth, at depths of 260-705 m. Inhabits soft bottom areas.

Features

Three-cusp multicusps on the anterior and two-cusp multicusps on the posterior row of cusps. Anterior unicusps (left/right) 11/10 (10/10). Posterior unicusps (left/right) 9/10 (10/10). Total cusps 50 (50). Prebranchial pores 13 (12). Branchial pores 7 (8). Trunk pores 57 (58). Tail pores 14 (15). Total pores 91 (93).

Size

To 79 cm

Colour

Purplish-brown with a dark caudal fin in life; brown in preservative with a pale margin to the gill apertures and ventral finfold; caudal finfold darker.

Feeding

Hagfishes are mostly scavengers.

Biology

The sexes are separate and fertilization is external. Hagfishes lay large demersal eggs.

Fisheries

Of no interest to fisheries.

Similar Species

Eptatretus gomoni differs from all other members of the genus by having the following combination of characters: eight pairs of gill pouches; three-cusp multicusps on the anterior and two-cusp multicusps on the posterior row of cusps; anterior unicusps 10–11; posterior unicusps 9–10; total cusps 50; prebranchial pores 12–13; branchial pores 7–8; trunk pores 57–58; tail pores 14–15; total pores 91–93; no nasal-sinus papillae.

Etymology

The species is named after Martin F. Gomon, Senior Curator of Fishes at Museums Victoria, in recognition of his distinguished contributions to ichthyology.

Species Citation

Eptatretus gomoni Mincarone & Fernholm 2010, J. Fish Biol. 77:794, Figs. 2E, 7-8. Type locality: West of Shark Bay-Exmouth, Western Australia, Australia, depth 260 metres (trap).

Author

Bray, D.J. 2018

Resources

Australian Faunal Directory

Gomon's Hagfish, Eptatretus gomoni Mincarone & Fernholm 2010

References


Mincarone, M.M.& Fernholm, B. 2010. Review of the Australian hagfishes with description of two new species of Eptatretus (Myxinidae). Journal of Fish Biology 77: 779-801.

Quick Facts


CAAB Code:37004006

Depth:260-705 m

Habitat:Soft bottoms

Max Size:To 79 cm

Native:Endemic

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CAAB distribution map