26 ANNUAL REPORT OF THE 



REPORT UPON THE MYRIOPODS, ARACHNIDS, AND 



WORMS. 



By Ralph V. Chamberlin. 



Aside from several smaller lots, the collection of Pacific Coast 

 Polychaeta of the California Academy of Sciences, and a collection 

 of Pacific polychaetes and sipuncnlids from the Geological Survey 

 of Canada, were received for study during the year. Some time 

 was spent in working up material for reports on the Polychaeta and 

 Gephyrea of the Canadian Arctic Expedition. 



The most important additions of Arachnida included several 

 shipments of material from Prof. C. F. Baker of Los Banos, 

 Philippines. A collection of arachnids from the Guano Islands of 

 Peru was received for study from Mr. R. C. Murphy and a report 

 was prepared upon the same. The types in this collection have 

 been given to the Museum. Several smaller collections of arach- 

 nids were also identified for individuals and institutions. 



Most of the year was devoted to work upon the Myriopoda. 

 The material available from the Bermuda Islands was reviewed 

 and a report upon the fauna of the region was completed. The 

 material from the East Indian Region in the collections of the 

 Museum, excepting important lots from the Philippines recently 

 received from Prof. C. F. Baker, was identified, and a paper de- 

 scriptive of the new forms prepared. A paper was also prepared 

 upon myriopods collected in India by Prof. C. A. Kofoid, to whom 

 the Museum is indebted for the first set of specimens. A revisional 

 study was made of the Mecistocephalidae. The remaining por- 

 tion of the year was given up principally to the study of the 

 Chilopoda and the Diplopoda of the Bryant Walker Expedition 

 to Colombia and British Guiana. A report upon these collections 

 was prepared. 



For arachnids and myriopods not otherwise acknowledged the 

 Museum is indebted to Messrs. J. H. Emerton, J. M. Aldrich, 

 H. A. Allard, S. C. Chamberlin, E. R. Sasscer, H. L. Sanford, 

 W. A. Hilton, L. 0. Howard, H. E. Hubert, and Frits Johansen. 



