''Eumicrotremus awae'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

lumpfish The Cyclopteridae are a family of marine fishes, commonly known as lumpsuckers or lumpfish, in the order Scorpaeniformes. They are found in the cold waters of the Arctic, North Atlantic, and North Pacific oceans. The greatest number of species ar ...

endemic to the

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

coast of

Honshu , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separ ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

, where it may be found from

Chiba Chiba may refer to: Places China * (), town in Jianli County, Jingzhou, Hubei Japan * Chiba (city), capital of Chiba Prefecture ** Chiba Station, a train station * Chiba Prefecture, a sub-national jurisdiction in the Greater Tokyo Area on ...

to Mie. It is a very small fish, reaching a maximum of 2 cm (0.8 in) SL, and it occurs near shore at depths of less than 20 m (66 ft). This species is variable in color, being typically seen as either vibrant green or red. It is known to feed on extremely small crabs, and was previously known as ''

Lethotremus ''Lethotremus'' is a genus of lumpfishes native to the northern Pacific Ocean. Following a 2017 taxonomic review by Lee et al., the species ''Lethotremus awae'' was reclassified as a species of ''Eumicrotremus ''Eumicrotremus'' is a genus of ...

awae'' until it was reclassified in 2017 following a taxonomic review and the descriptions of two similar "dwarf" species in ''Eumicrotremus''.

References

Cyclopteridae {{Improve categories, date=January 2022 Fish of Japan