seed shrimp vs mussel shrimp

seed shrimp and mussel shrimp both are nouns.

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

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

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

Other synonyms of seed shrimp include ostracod.

seed shrimp (noun)	mussel shrimp (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