Do you know what is small oval mandarin?

    Only on my third year in Cyprus I opened kumquat, from Сhinese language it means"golden apple". Once I bought it and thought that it was some kind of mandarins, tried to peel it. It is not necessary to clean it, you have to eat it with its skin, which is sweet. It looks like small oval mandarin, usually the price in Cyprus supermarkets near 4 Euro per kg.