saccule vs sacculus

saccule and sacculus both are nouns.

Word	Noun	Adjective	Verb	Adverb
saccule	Yes	No	No	No
sacculus	Yes	No	No	No

As nouns, saccule and sacculus are synonyms defined as:

saccule and sacculus: a small sac or pouch (especially the smaller chamber of the membranous labyrinth)

saccule (noun)	sacculus (noun)
a small sac or pouch (especially the smaller chamber of the membranous labyrinth)	a small sac or pouch (especially the smaller chamber of the membranous labyrinth)