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Kira, T. (1959). Descriptions on Siphonalia trochulus tokaiensis, n. subsp. and Mitra hayashii, n. sp. Venus. 20(4): 339-342.
Kira, T. (1959). Descriptions on Siphonalia trochulus tokaiensis, n. subsp. and Mitra hayashii, n. sp. Venus. 20(4): 339-342.