Okugawa, K. I. (1937-1938). Report on the limnological survey in the of Loochoo Islands. (Limnological researches of Lu-chu islands, No. 3) Botany & Zoology (Tokyo), 6: 1855-1865. [In Japanese]
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Okugawa, K. I.
1937-1938
Report on the limnological survey in the of Loochoo Islands. (Limnological researches of Lu-chu islands, No. 3)