Masafumi Matsui (松井 正文; born 1950) is a Japanese zoologist and herpetologist, and a professor emeritus at Kyoto University. He is a leading researcher in amphibian studies and a recipient of the Zoological Society of Japan Prize. He also served as president of the Herpetological Society of Japan.
Source: “Masafumi Matsui”, English Wikipedia (CC BY-SA 4.0), excerpt