What kind of lion is on the Sri Lankan Flag?

"The flag of Sri Lanka, also called the Lion Flag or Sinha Flag, consists of a golden lion holding a kastane sword in its right fore-paw in a maroon background with four gold bo leaves, one in each corner. This is bordered by gold, and to its left are two vertical stripes of equal size in green and orange, with the orange stripe closest to the lion. The lion and the maroon background represent the Sinhalese, while the saffron border and four bo leaves represent Buddhism and the four Buddhist concepts of mettā, karuṇā, muditā and upekshā respectively."

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