Masaji Nagai (永井政次, 9 February 1905 – 22 November 1966), Japanese phycologist and mycologist.

IPNI standard form: Nagai

Taxon names authored

(List may be incomplete)

• 16 taxon names authored by Masaji Nagai

Publications

(List may be incomplete)

• Nagai, M. 1931. Studies on the Japanese Saprolegniaceae. Journal of the Faculty of Agriculture, Hokkaido Imperial University 32(1): 1–43, pls. I–VII. hdl: 2115/12685 . Reference page. 
• Miyabe, K. & Nagai, M. 1932. Pleuropterum paradiseum, a new genus and species of Alarieae from the northern Kuriles. Proceedings of the Imperial Academy of Japan, Tokyo 8: 127–130. DOI: 10.2183/pjab1912.8.127 Reference page. 
• Nagai, M. 1933. On a new species of Cymathaere from the Kurile Islands. Proceedings of the Imperial Academy, Tokyo 9(9): 531–534. DOI: 10.2183/pjab1912.9.531 Reference page. 
• Nagai, M. 1940. Marine algae of the Kurile Islands. I. Journal of the Faculty of Agriculture, Hokkaido Imperial University 46(1): 1–137, pls. I–III. hdl: 2115/12739 . Reference page. 
• Nagai, M. 1941. Marine algae of the Kurile Islands. II. Journal of the Faculty of Agriculture, Hokkaido Imperial University 46(2): 139–310, pls. IV–VI. hdl: 2115/12740 . Reference page. 

References

• Tokida, J. 1967. Masaji Nagai (1905–1966). [in Japanese]. The Bulletin of Japanese Society of Phycology 15(3): 159–161. Japanese Society of Phycology (PDF) Reference page.