Macaca irus vs croo monkey

Macaca irus and croo monkey both are nouns.

Word	Noun	Adjective	Verb	Adverb
Macaca irus	Yes	No	No	No
croo monkey	Yes	No	No	No

As nouns, Macaca irus and croo monkey are synonyms defined as:

Macaca irus and croo monkey: monkey of southeast Asia, Borneo and the Philippines

Other synonyms of Macaca irus include crab-eating macaque.

Macaca irus (noun)	croo monkey (noun)
monkey of southeast Asia, Borneo and the Philippines	monkey of southeast Asia, Borneo and the Philippines