Modifiers matching larva:

• aquatic,
• bivalve,
• useful,
• small,
• invertebrate,
• marine,
• large,
• unwanted,
• bodied,
• pelagic,
• mobile,
• sized,
• crustacean,

Simple categories matching bivalve:

• seafood,
• mollusc,
• shellfish,
• organism,
• larva,
• predator,
• mollusk,
• species,