K.  Hayasi, ?On the so-colled bottle-shaped glands of Pinctada martensii, with special reference to Tanaka's theory of pearl formation?, Annot. Zool. Japon, vol. 17, pp. 105-106, 1938.

K.  Hayasi, ?On the so-colled bottle-shaped glands of Pinctada martensii, with special reference to Tanaka's theory of pearl formation?, Anot. Zool. Japon, vol. 17, pp. 105-106, 1938.