JOURNAL OF THE COLLEGK OK SCIENCE, TOKYO IMPEUIAL UNIVEESirV. 



VOL. XLIV., ART. 4. 



On the Terrestrial Planarians from Japanese Territories. 



Tokio KabüRAKK 



Zoological Institute, Science College, Imperial University, Tokyo. 



TT/V/f 1 phite and 23 text /i<iiiies. 



Since the appearance of Stimpson's report (62), the tei'restrial 

 planarians of Japan have been largely neglected, though von Graff 

 (25) recorded one more species later. 



The material upon which the present report is based was col- 

 lected chiefly b}^ the late Professor Lsao Ijima and by myself in 

 several localities. Consignment of some specimens were received 

 from Professor S. Watase, Dr. S. Hozwa, Mr. S. Kinohhita, the 

 late Mr. M. Takp:hhita and the late Mr. Yasuda. To the gentle- 

 men named I desire to express my thanks for the opportunity of 

 working at these forms. 



Here I deem it my duty to acknowledge my indebtedness to 

 the University of Cambridge for the use of their tables at the 

 Zoological Laboratory, which made it possible foi' me to prosecute 

 the present investigation. It should also be mentioned tliat some 

 of the coloured illustrations given in the plate acompanying this 

 paper were made by the late Professor Ltima from living examples. 

 To him are due my warmest thanks for his kindness in allowing 

 me the use of those excellent figures as well as in placing at my 

 disposal a series of notes and sketches taken by him. 



The classification here adopted is that laid down by von Graff 

 in his well-knovvn monograph. 



