I don't think I've posted these before - it's been a while since I had any, but now I'm sitting at the computer with a bowl of these in front of me. Dried little fish. I don't know what species. They are labelled 美味鱼干, which means 'beautiful taste dried fish'
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Each fish is about two inches nose to tip of tail. They are dried and whole - i.e. not gutted.
They need salt and maybe pepper, but I tend to go with sea salt and shichimi togarishi. A cold beer does no harm either.