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Okada, Y. & Y. Okasaka. (1939). On the modification of the sexual characters of Petrolithes [sic] japonicus (De Haan) by the parasite Lernaeodiscus cornatus [sic] Boschma. I. Secondary sexual characters and their changes. Science Reports of the Tokyo Bunrika Daigaku, Section B. 4: 63-88, pl. 8.
Okada, Y. & Y. Okasaka. (1939). On the modification of the sexual characters of Petrolithes [sic] japonicus (De Haan) by the parasite Lernaeodiscus cornatus [sic] Boschma. I. Secondary sexual characters and their changes. Science Reports of the Tokyo Bunrika Daigaku, Section B. 4: 63-88, pl. 8.
