bonnet shark vs bonnethead

bonnet shark and bonnethead both are nouns.

Word	Noun	Adjective	Verb	Adverb
bonnet shark	Yes	No	No	No
bonnethead	Yes	No	No	No

As nouns, bonnet shark and bonnethead are synonyms defined as:

bonnet shark and bonnethead: small harmless hammerhead having a spade-shaped head; abundant in bays and estuaries

Other synonyms of bonnet shark include shovelhead, Sphyrna tiburo.

bonnet shark (noun)	bonnethead (noun)
small harmless hammerhead having a spade-shaped head; abundant in bays and estuaries	small harmless hammerhead having a spade-shaped head; abundant in bays and estuaries