741 Heterodontus japonicus Miklouho-Maclay & Macleay, 1884 Heterodontidae Bullhead, horn, or Port Jackson sharks Heterodontiformes Elasmobranchii Japanese bullhead shark Northwest Pacific: off Japan, Korean Republic, northern China including Taiwan Island. AMNH 222821 Heterodontus japonicus AMNH 222852 Heterodontus japonicus AMNH 224693 Heterodontus japonicus AMNH 48517 Heterodontus japonicus AMNH 225825 1883 Heterodontus japonicus AMNH 4735 1912 Heterodontus japonicus AMNH 58755 1982 Heterodontus japonicus