The Hymenocephalus barbatulus lives in the bathypelagic, marine, depth range - 695 m environment.
as Hymenocephalus barbatulus Gilbert & Hubbs 1920 - (Iwamoto in Cohen et al. 1990:230 , Iwamoto 1999:1991 ). Current status: Valid as Hymenocephalus barbatulus Gilbert & Hubbs 1920 Macrouridae: Macrourinae. Distribution: Western Pacific. Habitat: marine. More