202 ACCOUNTS, ETC.> OF THE BRITISH MUSEUM. 



The chief additions made to the exhibited series are : — A 

 set of Gidaris from Faringdon described by H. L. Hawkins, 

 newly-described Blastoids from Somerset, and an example of 

 Palceaster, associated with its molluscan prey, from New York 

 State. All the specimens in table-case 29 have been removed, 

 the floor of the case raised, and the Asteroidea and Ophiuroidea 

 re-arranged ; the British Palseozoic Echinoidea are being 

 re-arranged in accordance with Prof. R. T. Jackson's recent 

 monograph. 



The slip-catalogue of exhibited specimens has been 

 continued. 



Progress has been made in the revision and re-arrangement 

 of the Cystidea and Edrioasteroidea, and with the slip-catalogue 

 of genera and species. 



Number of specimens of Echinoderma registered : Echinoidea, 

 263 ; Asteroidea and Ophiuroidea, 3,843 ; Crinoidea, 288 ; 

 Blastoidea, 31 ; Cystidea and Edrioasteroidea, 99. Total 

 4,524. 



Annelida (Gallery 8 and Workroom). — The acquisitions 

 registered, labelled, and incorporated include specimens from 

 the Cambrian of Bray Head (Bather coll.), the Silurian of 

 Staffordshire (Wickham King coll.), the Cretaceous of England 

 (Mockler and G. Sheppard colls.), Ireland (Joseph Wright, 

 R. Bell, and Donaldson colls.), France (Valabregue coll.), 

 Westphalia (Bather coll.), and India (W. E. Crane coll.). 



The type specimen of Pharetriwm fragile, Konig, 1825, 

 figured in " Icones Foss. Sect.," No. 80, as a supposed Pteropod, 

 has been identified among the foreign Annelida and re-labelled 

 for exhibition. It is Pyrgopolon mosce, Montfort. 



The slip-catalogue of exhibited specimens has been kept up 

 to date. 



Number of specimens of Annelida registered, 95. 



Brachiopoda (Gallery 8 and Workroom). — The registration 

 of the foreign Brachiopoda in the Walker collection has been 

 continued and is approaching completion. 



Number of specimens of Brachiopoda registered, 1,420. 



Polyzoa (Gallery 8 and Workroom). — One side of an 

 upright case in Gallery 10 has been arranged to exhibit the 

 development and leading structural features of fossil Polyzoa. 

 Recently acquired specimens of Cretaceous Polyzoa, chiefly 

 from Seaford, Boxmoor, and Burnham have been cleaned, 

 mounted, and registered as a preliminary to cataloguing. Of 

 specimens from other formations registered and incorporated, 

 the chief are those, mainly Carboniferous, of the collection of 

 S. G. Perceval, Esq. 



Number of specimens of Polyzoa registered, 1,443. 



Anthozoa and Hydrozoa (Gallery 10). — A large collection 

 of Carboniferous and Devonian Corals, presented by S. G. 

 Perceval, Esq., has been registered and incorporated. Other 



