''Aulichthys'' is a monospecific genus of marine

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

belonging to the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Aulorhynchidae Aulorhynchidae, the tube-snouts, is a small Family (biology), family of marine ray-finned fishes belonging to the suborder Gasterosteoidei in the Order (biology), order Perciformes. These fishes are found in the northern Pacific Ocean. Taxonomy ...

. Its only species is ''Aulichthys japonicus'', the tubenose, which is found in the shallow waters on the coasts of

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

and the

Korean Peninsula Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically divided at or near the 38th parallel between North Korea (Dem ...

This species lays its eggs inside of the peribranchial cavities of ascidians. This species grows to a length of SL.

References

* Aulorhynchidae Monotypic ray-finned fish genera Monotypic marine fish genera {{Gasterosteiformes-stub