Hylobates lar vs gibbon

Hylobates lar and gibbon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hylobates lar	Yes	No	No	No
gibbon	Yes	No	No	No

As nouns, Hylobates lar and gibbon are synonyms defined as:

Hylobates lar and gibbon: smallest and most perfectly anthropoid arboreal ape having long arms and no tail; of southern Asia and East Indies

Hylobates lar (noun)	gibbon (noun)
smallest and most perfectly anthropoid arboreal ape having long arms and no tail; of southern Asia and East Indies	smallest and most perfectly anthropoid arboreal ape having long arms and no tail; of southern Asia and East Indies