chambered nautilus vs pearly nautilus

chambered nautilus and pearly nautilus both are nouns.

Word	Noun	Adjective	Verb	Adverb
chambered nautilus	Yes	No	No	No
pearly nautilus	Yes	No	No	No

As nouns, chambered nautilus and pearly nautilus are synonyms defined as:

chambered nautilus and pearly nautilus: cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions

Other synonyms of chambered nautilus include nautilus.

chambered nautilus (noun)	pearly nautilus (noun)
cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions	cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions