DEPARTMENT OF GEOLOGY. 171 



Arthropoda (Gallery 8 and Workroom). — The Cirripedia, 

 Trilobita, and various Insects enclosed in amber have been the 

 groups to receive most attention during the year. 



Among Cirripedia registered, labelled, and incorporated are 

 specimens from the Cretaceous rocks of England, France 

 (Hutin Coll.), Belgium, and Westphalia ; from the Oxfordian 

 of Wiltshire ; and from the Stonesfield Slate near Cheltenham 

 (P. B. Brodie). 



The Trilobites registered and incorporated include a series 

 from the Olenellus-Limestone of Comley Quarry, Shropshire ; 

 Devonian specimens collected by Mrs. A. S. Woodward near 

 Constantinople ; over three hundred from the Cambrian and 

 Ordovician of Vestrogothia, Nerike, and Dalecarlia (Bather 

 Coll.) ; and specimens from numerous foreign localities. 



Many of the Insects enclosed in Amber have been sorted 

 and re-registered for study by various specialists. 



Among the other Arthropods registered and incorporated 

 are Ostracoda from rocks of supposed Tei-tiary age in the 

 Phillippines (Warren D. Smith Coll.) ; Tertiary Insects from 

 Shiobara, Japan (M. C. Stopes) ; a large series of interesting 

 forms belonging to several groups found in Coal Measure 

 nodules at Coseley, Stattbrdshire (Neil and other Collections). 



The temporary exhibit of Miocene fossils from Florissant, 

 Colorado, has been broken up, and the Arthropods have been 

 transferred provisionally to a case adjacent to the systematic 

 series of Insecta. The slip-catalogue of these fossils has been 

 kept up to date. 



The exhibited series of British Jurassic Cirripedes has been 

 re-labelied, re-mounted, and re-arranged. A few additions have 

 been made to the British Cretaceous series, notably those from 

 the Sowerby Collection transferred from gallery 11. 



A special selection of specimens illustrating the structure 

 of the Trilobites has been prepared, labelled, and placed on 

 exhibition. The British species of Harpes have been re- 

 mounted and re-labelled after revision. 



Interesting Carboniferous Arthropods of the genera Pleuro- 

 car is, Faloeocaris [= Prceanaspides], Pygocephalus, and 

 Falceomachus, have been specially investigated and placed on 

 exhibition with explanatory labels. 



A fine specimen of Glyphcea cretacea from the Totternhoe 

 Stone of Hertfordshire (presd. by Wm. Hill, Esq.) has been 

 added to the exhibited series of British Crustacea. 



Number of specimens of Arthropoda registered, 1,121. 



EcJdnoderma (Gallery 8). — The acquisitions registered, 

 labelled, and incorporated during the year include : — Echinoids 

 from the Chalk of England (Bower, Dibley, and C. Griffith 

 Colls.), and of France (Hutin), from the Lower Greensand of 

 Kent ( Bullbrook), and from various European Tertiary 

 localities ; Echinoids, Asteroids, Ophiuroids, and Crinoids from 



