''Bathygadus nipponicus'' is a species of

rattail Grenadiers or rattails are generally large, brown to black gadiform marine fish of the subfamily Macrourinae, the largest subfamily of the family Macrouridae. Found at great depths from the Arctic to Antarctic, members of this subfamily are am ...

. This is a deep-water fish found in the waters around southern

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 ...

and northern

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

. This species grows to around 57 cm (22.4 in) in length. It has a fairly wide mouth with a low, broad snout, large eyes and no chin

barbel Barbel may refer to: *Barbel (anatomy), a whisker-like organ near the mouth found in some fish (notably catfish, loaches and cyprinids) and turtles *Barbel (fish), a common name for certain species of fish **''Barbus barbus'', a species of cyprinid ...

. The mouth is terminal with very small, conical teeth.

References

A new species, ''Caelorinchus sheni'', and 19 new records of grenadiers (Pisces: Gadiformes: Macrouridae) from Taiwan - CHIOU Mei-Luen ; SHAO Kwang-Tsao ; IWAMOTO Tomio
Macrouridae Taxa named by David Starr Jordan Taxa named by Charles Henry Gilbert Fish described in 1904 Fish of Japan Fish of Taiwan Marine fish of Asia {{Gadiformes-stub