That was my answer. "Winkle is a common name applied to numerous different species of small, round, usually edible, snails. These are often species of sea snails..." https://en.wikipedia.org/wiki/Winkle
Why isn't wildebeest spelled with a "beast" at the end? And why do I always think it is? I'm surprised no one has complained about that not being an accepted spelling.
Tried like 30 different ways of spelling wallaby... one l, double b, walla walle (wallu?) walli, wally, bee,be bi,by. Everything apparently but the right combo. Maybe some leniency on spelling?
I knew most of them, and guessed on another. The only one I missed was whelk. Learned wrasse from crossword puzzles, walleye from a middle school fishing excursion, weevil from reading a Wheel of Time book (bole weevil), and whippet from a neighbor who had one.
And, gotta love wombats.