Nachdruck verboten. 



Ueber setzungsrecht vorbehalten . 



On some Perichsetidse from Japan. 



By Frank E. Beddard, 



M. A., F. K. S., Prosector to the Zoological Society of Loudon, 

 and Lecturer ou Biology at Guy's Hospital. 



With Plate 32. 



I am iodebted to the kiiidiiess of iny friend Mr. Masataka Kokugo 

 for a coUectioii of eartliworiiis froni Japan, whicb were in a satisfactory 

 coiidition for anatomical investigation , if uot for histological study. 

 Most regions of the world have been but little explored for OUgoch^ta ; 

 and Japan is one of the least knowu countries ; I am therefore parti- 

 cularly grateful to Mr. Rokugo for giving me the opportunity of 

 adding to what is already known about the Oligochceta of this part 

 of Asia. At present but two papers have been pubhshed dealing with 

 Japanese earthworms; the first is a paper by Dr. Horst ^) which con- 

 tains descriptions of a series of new species of the genus Perkhcefu 

 (or as he terms it „Megascolex'''), among which are three species — viz. : 

 P. sleboldi, P. sclimardce, P. japonicus — from Japan. The second 

 paper dealing with Japanese worms is much niore recent ; Dr. Michael- 

 sen ^) in a notice of the Terricolous fauna of the Azores has inci- 

 dentally referred to two Japanese species — a new form, Allolobo- 

 phora japonica, the other the ubiquitous Ä. foetida. 



Finally Dr. D. Rosa ^) has described a 6th species — P. ißmce — 

 from the same country. 



1) in: Notes Leyd. Mus. Vol., 5, p. 182. 



2) in: Abhandl. Naturw. Ver. Hamburg, Bd. 11. 



3) in: Ann. Hofmus. Wien, Bd. 6, p. 379. 



