154 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



ECHINODERMA — Continued. 



Very special interest attaches to the acquisition of two 

 specimens of the exceedingly rare and curious Holothurian, 

 Rhopalodina lageniformis, from Lagos, presented by J. 

 Cadman, Esq. ; the type was described by Dr. Gray in 1853, 

 and since that year no example has been offered for the 

 collection. 



Worms. 



Seventy-two Polychseta from the West Coast of Ireland 

 were presented by the Department of Agriculture and Tech- 

 nical Instruction {Fisheries Branch), Dublin; of these 

 Streptosyllis bidentata (^a co-type), Prcegeria reraota (co-type), 

 Nerinides tridentata (co-type) may be mentioned. 



Rhinodrilus pebasiensis is a type described by Dr. Cognetti 

 de Martiis. 



Two hundred and four Gephyrea have been registered from 

 the Norman collection ; among them is a good series of Phas- 

 colosoma tenuicinctum, and of Thalassema neptuni. The 

 registration and incorporation of the Norman collection of 

 Worms is now completed. 



Two sets of Rotifers, respectively of 18 and 14 slides, were 

 purchased from Mr. Rousselet, and the collection of these 

 animals is now probably superior to that in any other Museum. 



The most important addition to the helminthological series 

 during the year was the considerable collection of Parasitic 

 Worms made by the British Antarctic ("Terra Nova") Ex- 

 pedition. Of these, five hundred and sixty-one specimens have 

 been registered. The additions from other sources number 

 eight hundred and seventy- eight, of which the following 

 deserve special mention : — 



Europe. 



Various consignments of Nematode and Cestode parasites of 

 poultry and game, from the British Isles ; presented by H. 

 Bammond Smith, Esq., M.D. 



Twenty-five microscopic preparations of free-living Nema- 

 todes from Ireland, including many co-types of new species ; 

 presented by the Departrtient of Agriculture and Technical 

 Instruction {Fisheries Branch)^ Dublin. 



Africa. 



Thirty parasitic worms from East African Mammals ; 'pre- 

 sented by the Hon. N. G. Rothschild. 



One hundred and sixty parasitic worms from Nyasaland ; 

 presented by the Imperial Bureau of Entomology. 



Eighteen parasitic worms from Sierra Leone (this number 

 does not include the types of a new genus of parasitic Oligochaeta 

 {Aspidodrilus) received at the same time) ; presented by the 

 Imperial Bureau of Entomology. 



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