Complex sentence: The Japanese bullhead shark ("Heterodontus japonicus") is a species of bullhead shark in the family Heterodontidae found in the northwestern Pacific Ocean off the coasts of Japan, Korea, and China.
Split into simpler sentences: The Japanese bullhead shark ("Heterodontus japonicus") is a species of bullhead shark, in the family Heterodontidae. It is found in the northwestern Pacific Ocean off the coasts of Japan, Korea, and China.