crabologistn.
Etymology: < crab n.1, after ornithologist, etc.Previous versions of the OED give the stress as: craˈbologist.
1824 J. Macculloch III. 420 The island furnishes rare minerals to the mineralogist and rare crabs to the crabologist.
This entry has not yet been fully updated (first published 1893; most recently modified version published online September 2019).