#holocephalan  fish with high compressed head and a body tapering off into a long tail
  supertype:  #cartilaginous_fish__cartilaginousfish__chondrichthian  fishes in which the skeleton may be calcified but not ossified
  member of:  #subclass_Holocephali
  subtype:  #chimaera  smooth-skinned deep-sea fish with a tapering body and long threadlike tail
     subtype:  #rabbitfish__Chimaera_monstrosa  large European chimaera

No statement uses or specializes #holocephalan; click here to add one.