conchologist
/kɒŋkɒˈlɒdʒɪst/Definitions
1. noun
A person who studies, collects, and classifies shells, especially of marine mollusks.
“The conchologist spent years traveling to remote islands to find rare specimens.”
2. noun
A collector or enthusiast of seashells.
“She was a well-known conchologist in her community, known for her extensive collection of shells.”