seed shrimp vs ostracod

seed shrimp and ostracod both are nouns.

Word	Noun	Adjective	Verb	Adverb
seed shrimp	Yes	No	No	No
ostracod	Yes	No	No	No

As nouns, seed shrimp and ostracod are synonyms defined as:

seed shrimp and ostracod: tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell

Other synonyms of seed shrimp include mussel shrimp.

seed shrimp (noun)	ostracod (noun)
tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell	tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell