R. Austin Freeman, The Blue Scarab — A Fisher of Men (1924)
“ Do you study our British mollusca, Badger?""No, I don't," the inspector replied with emphasis."Pity," murmured Thorndyke. "If you did, you would be interested to learn that the name of this little shell is Clausilia biplicata.""I don't care what its beastly name is," said Badger. "I want to know whose bag this is; what the owner is like; and where he came from and where he has gone to. Can you tell us that?"Thorndyke regarded the inspector with wooden gravity. "It is all very obvious," said he, "very obvious. ”
