Modifiers matching snail:

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

Simple categories matching venomous:

• arthropod,
• reptile,
• snake,
• animal,
• thing,
• serpent,
• pet,
• fish,
• scorpion,
• beast,
• invertebrate,
• organism,
• critter,
• insect,
• creature,
• snail,
• spider,