Chordata Bateson, 1885 - chordates Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838 Subclass Holocephali Bonaparte, 1832 Order Chimaeroidei see Order Chimaeriformes Obruchev, 1953 Family Callorhynchidae Garman, 1901 [monotypic] see Family Callorhinchidae Garman, 1901 1 Genus Callorhynchus Cuvier, 1829 see Genus Callorhinchus Lacepède, 1798