{{Taxobox | name = Eptatretus minor | image = | regnum = [[Animalia]] | phylum = [[Chordata]] | class = [[Myxini]] | order = [[Myxiniformes]] | family = [[Myxinidae]] | genus = [[Eptatretus]] | species = E. minor | binomial = ''Eptatretus minor'' | binomial_authority = (Regan, 1912) | status = [[Data Deficient]] (IUCN 3.1) | status_system = IUCN 3.1 | status_ref = {{cite web |url=https://www.iucnredlist.org/species/196024/76191764 |title=IUCN Red List of Threatened Species |publisher=IUCN |access-date=2023-10-27}} }}
Eptatretus minor is a species of [[hagfish]] belonging to the family [[Myxinidae]]. It is a marine, jawless fish known for its elongated, eel-like body and its ability to produce copious amounts of protective slime.
Description
''Eptatretus minor'' is a relatively small hagfish, typically reaching a maximum total length of about 23 centimeters (9.1 inches). Its body is generally whitish in coloration. A key characteristic for identification within the genus is the number of gill openings; ''E. minor'' possesses six pairs of gill openings. It also has between 41 and 47 slime pores along its body, which are used to secrete its famous defensive slime. Like all hagfish, it lacks jaws and possesses a mouth surrounded by barbels, used for sensing and feeding on the seafloor.Taxonomy and Etymology
The species was first described by Charles Tate Regan in 1912.- The genus name, ''Eptatretus'', is derived from the [[Ancient Greek]] words "hepta" (seven) and "trema" (hole), referring to the seven gill openings characteristic of some species within the genus. However, ''E. minor'' itself has six gill openings.
- The specific epithet, ''minor'', is [[Latin]] for "smaller" or "lesser," likely referencing its relatively small size compared to other hagfish species.
Habitat and Distribution
''Eptatretus minor'' is a deep-sea species found in the western [[Pacific Ocean]]. Its known distribution includes the waters off [[Japan]] (specifically the [[Ryukyu Islands]] and the [[Okinawa Trough]]) and [[Taiwan]]. It typically inhabits depths ranging from 260 to 600 meters (850 to 1,970 feet), residing on the seafloor.Biology and Ecology
As a hagfish, ''Eptatretus minor'' is likely a scavenger and possibly a predator of small invertebrates. It uses its strong, horny teeth on a rasping tongue to bore into dead or dying organisms that sink to the seabed, or to capture live prey. Hagfish are also renowned for their unique defense mechanism: when threatened, they release a protein that combines with seawater to form a rapidly expanding, viscous slime, which can deter or clog the gills of predators.Conservation Status
The [[International Union for Conservation of Nature]] (IUCN) has classified ''Eptatretus minor'' as [[Data Deficient]] (DD). This classification indicates that there is insufficient information to properly assess its population trends, threats, or conservation status. Further research is needed to determine the specific conservation needs of this species.References
{{reflist}}[[Category:Eptatretus]] [[Category:Hagfish]] [[Category:Fish of Japan]] [[Category:Fish of Taiwan]] [[Category:Deep-sea fish]] [[Category:Taxa described in 1912]]