[エドアブラザメぞく, edoaburazame zoku] (n) Heptranchias (genus of cow shark in the family Hexanchidae containing the sharpnose seven-gill shark as its only member)
[カグラザメか, kagurazame ka] (n) Hexanchidae (family with 4 species and 3 genera of cow sharks characterized by either 1 or 2 additional pairs of gill slits)