CONTENTS: 



,/' Page. 



I. Bostninopsis in Japan. With Plate IV. 



By Eduard Klocke. 123. 



II. On a New Polygordiiis from Misaki (P. Ijimai n. sp.) 



By Akira Izuka 137. 



III. On the Development of the Sexual Organs and of Their 



Products in Phoronis. With Plate V. 



By Iwaji Ikeda 141. 



v 



