Eptatretus lakeside 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Myxini Myxiniformes Myxinidae

Scientific Name: Eptatretus lakeside
Species Authority: Mincarone & McCosker, 2004

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2011
Date Assessed: 2009-11-10
Assessor(s): Mincarone, M.M.
Reviewer(s): Polidoro, B., Knapp, L. & Carpenter, K.E.
This species is known only from a single specimen recorded in the Galapagos Islands. More research is needed to determine this species' distribution, population, habitat, ecology and any major threats. It is listed as Data Deficient.

Geographic Range [top]

Range Description:This species is known only from the type locality off Cabo Douglas, NW Fernandina Island, Galápagos Archipelago (Mincarone and McCosker 2004).
Countries occurrence:
Ecuador (Galápagos)
FAO Marine Fishing Areas:
Pacific – southeast
Additional data:
Lower depth limit (metres):762
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is only known from the holotype, but is likely endemic to Galápagos Archipelago.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:The only known specimen was collected from Cabo Douglas which is located along the NW corner of Fernandina Island and drops steeply into deep water (more than 1,000 m depth at a distance less that 2 km from shore). The bottom is nearly flat with a slight downward slope (<10°) and covered with fine gray sediment and occasional lava boulders (~0.5 m in diameter) in the vicinity of other large lava reefs. The temperature at depth (762 m) was 8°C and there was a current of ~0.3 knots at the moment of capture of the specimen (Mincarone and McCosker 2004).

The size of 27.5 cm total length (TL) is that of an immature female.

Threats [top]

Major Threat(s): There are no known direct threats to this species.

Conservation Actions [top]

Conservation Actions: This species is found within the Galápagos Marine Reserve so it is potentially safeguarded through enforcement activities. More research is needed on the species' distribution, biology, population size, distribution and potential major threats.

Classifications [top]

11. Marine Deep Benthic -> 11.1. Marine Deep Benthic - Continental Slope/Bathyl Zone (200-4,000m) -> 11.1.1. Hard Substrate
11. Marine Deep Benthic -> 11.1. Marine Deep Benthic - Continental Slope/Bathyl Zone (200-4,000m) -> 11.1.2. Soft Substrate

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology

Bibliography [top]

IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.1). Available at: (Accessed: 16 June 2011).

Mincarone, M.M. and McCosker, J.E. 2004. Eptatretus lakeside sp. nov., a new species of five-gilled hagfish (Myxinidae) from the Galápagos Islands. Proceedings of the California Academy of Science 55(6): 162-168.

Citation: Mincarone, M.M. 2011. Eptatretus lakeside. The IUCN Red List of Threatened Species 2011: e.T196028A8995158. . Downloaded on 27 April 2017.
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