DEPARTMENT OF ZOOLOGY. 71 



The thanks oE the Trustees are again due to Mr. E. A. Smithy 

 I.S.O., formerly Assistant Keeper in the Department of Zoology, 

 who has continued to lend valuable assistance to the Department. 



Brachiopoda. 

 The collection of Brachiopoda obtained by the " Terra Nova " 

 Expedition is being studied by J. W. Jackson, Esq. Owing to 

 service in connection with the war the work can only be proceeded 

 with at intervals. 



Myriopoda and Arachnida. 



Systematic work on parasitic Acari was continued during the 

 year, and several reports on these Arachnids were published, includ- 

 ing a description of a new species found on the domestic fowl and 

 the first detailed description of the Akamushi Mite, carrier of the 

 Kedani or River-Fever of Japan. Of the Koch Collection, 6,913 

 specimens were registered and a considerable portion arranged and 

 labelled. All other accessions received have been incorporated into 

 the general collection. 



Crustacea and Pycnogonida. 



A large specimen of the Common Lobster has been added to the 

 Exhibited series. 



The registration of the spirit specimens in the Norman collec- 

 tion has been completed, a total of 49,284 specimens having been 

 registered during the past three years. The registration of the 

 collection of microscopic slides has been begun, and 1,673 slides 

 have been entered during the year. The other collections alluded 

 to in last year's Return remain untouched. 



A Report on the " Terra Nova " collection of Pycnogonida has 

 been published, and the collection itself has been registered and 

 incorporated. In connection therewith many determinations of 

 Pycnogonida have been revised and the whole collection re-arranged. 



A large number of bottles of plankton collected by the " Terra 

 Nova " have been searched through and the Crustacea of various 

 orders contained in them have been sorted out. 



The doors of the cupboards containing the spirit collection are 

 being re-fitted and made dust-proof. 



ECHINODERMA. 



Great difficulty has been experienced in finding accommodation 

 for specimens preserved in spirit, and the further orderly arrange- 

 ment of species cannot be completely carried out. Most of the 

 specimens obtained during the year have been determined and all 

 have been incorporated. 



The arrangement of microscopic slides in suitable cabinets has 

 been completed, and an index-catalogue to them is in course of 

 preparation ; this remark also applies to the Prototracheata, to the 

 Polychseta and their allies, as well as to the Anthozoa. 



