CONTENTS. 



Part I. 



(Published Nov. 10, 1906.) 



PAGK 



Cyclosalpa retracta, a New Salpoicl from the Coast of Japan. By 



Wm. E. Bitter 1 



Neue Bhopaloceren Japans. (Hierzu Taf. I). Von Dr. S. Matsü- 



MURA i ••••• 7 



Die Blattiden Japans. (Hierzu Taf. II). Von T. Shiraki 17 



Notizen über japanische Ascidien I. Von Asajiro Oka 37 



Part II. 



(Published April 28, 1907.) 



A List of a Collection of Lepidoptera from Formosa. By T. Miyake. 53 



Die Cicadineu Japans. Von Dr. S. Matsumura 83 



Zur Kenntnis der Suesswasser-Bryozoenfauna von Japan. VonDr. 



Asajiro Oka 117 



An Annotated List of Plankton Microrganisms of the Japanese Coast. 



(With Pis. III— VI). By K. Okamura 125 



Part III. 



(Published Dec. 30, 1907.) 



On Japanese Species of Corbicula. (With Pl. VII). By Henry A. 



Pilsbry 153 



Notiz über Syntomis germana. Feld. Von T. Miyake 161 



An Annotated List of the Lepidoptera of Oki. By T. Miyake. ... 163 

 Eine neue Süsswassermeduse aus China. (Hierzu Taf. VIII). Von 



A. Oka. 219 



