Modifiers matching snail:

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

Simple categories matching venomous:

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