white shark vs Carcharodon carcharias

white shark and Carcharodon carcharias both are nouns.

Word	Noun	Adjective	Verb	Adverb
white shark	Yes	No	No	No
Carcharodon carcharias	Yes	No	No	No

As nouns, white shark and Carcharodon carcharias are synonyms defined as:

white shark and Carcharodon carcharias: large aggressive shark widespread in warm seas; known to attack humans

Other synonyms of white shark include great white shark, man-eater, man-eating shark.

white shark (noun)	Carcharodon carcharias (noun)
large aggressive shark widespread in warm seas; known to attack humans	large aggressive shark widespread in warm seas; known to attack humans