Modifiers matching snail:

• herbivorous,
• marine,
• predatory,
• small,
• venomous,
• terrestrial,
• intertidal,
• large,
• aquatic,
• larger,

Simple categories matching intertidal:

• organism,
• invertebrate,
• herbivore,
• structure,
• shellfish,
• mollusk,
• bivalve,
• system,
• arthropod,
• mollusc,
• fauna,
• animal,
• prey,
• species,
• gastropod,
• creature,
• snail,