Answer:
The study of Molluscs is called Malacology. The term 'Conchology' is also used for the study of Molluscs; however, it is usually applied to those that study the shell only.
Animal : Frog
Category : Mollusca
Next Question: What is the 'Study of Fossilized Insects', called?
Previous Question: What do frogs have in their mouths that toads don't?