intraspecies vs intraspecific

intraspecies and intraspecific both are adjectives.

Word	Noun	Adjective	Verb	Adverb
intraspecies	No	Yes	No	No
intraspecific	No	Yes	No	No

As adjectives, intraspecies and intraspecific are synonyms defined as:

intraspecies and intraspecific: arising or occurring within a species; involving the members of one species

intraspecies (adjective)	intraspecific (adjective)
arising or occurring within a species; involving the members of one species	arising or occurring within a species; involving the members of one species