salpa vs salp

salpa and salp both are nouns.

Word	Noun	Adjective	Verb	Adverb
salpa	Yes	No	No	No
salp	Yes	No	No	No

As nouns, salpa and salp are synonyms defined as:

salpa and salp: minute floating marine tunicate having a transparent body with an opening at each end

salpa (noun)	salp (noun)
minute floating marine tunicate having a transparent body with an opening at each end	minute floating marine tunicate having a transparent body with an opening at each end