Modifiers matching snail:

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

Simple categories matching intertidal:

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