DEPARTMENT OF GEOLOGY. 171 



The slip-catalogue of recently described Arthropods from 

 the Miocene beds of Florissant (many of which are being- 

 acquired for the Museum) is kept up to date. A slip-catalogue 

 has been made of the species of the Trilobite Harpes, and the 

 specimens in the Museum duly entered therein. 



The exhibited series of British Cretaceous Cirripedes has 

 been re-labelled, re-mounted, and re-arranged. The recently 

 presented type-specimen of the Trilobite Bronteus halli from 

 the Middle Devonian near Gerolstein [I. 13,G45], and a plaster 

 cast of its counterpart already in the Museum, have been 

 provided with printed labels and placed on exhibition. A cast 

 and coloured drawing of Oxyuroj^oda ligioides, an Isopod from 

 the Upper Devonian of Kiltorcan, have been exhibited with 

 explanatory labels. 



Number of specimens of Arthropoda registered, 303. 



Echinoderma (Gallery 8). — The acquisitions registered, 

 labelled, and incorporated during the year include : — Palaeozoic 

 Echinoderms, chiefly Pelmatozoa, from Canada (W. A. Parks, 

 W. K. Smith), from Britain (G. H. Morton), from Northern 

 Shan States, Burma (Geol. Surv., India), from Russia 

 (F. A. Bather) ; Triassic Echinoderms, chiefly Crinoidea and 

 Echinoidea, from the Raibl and Kossen beds (Munich Museum), 

 from Germany (E. Mascke) ; Echinoids from the Cornbrash 

 (J. F. Blake) ; Echinoids and Crinoids from the Corallian of 

 Mexico (C. G. Rickards) ; Jurassic Echinoids, Scotland (Marcus 

 Gunn) ; Jurassic Crinoids, France (A. Michalet) ; Crinoids and 

 Echinoids from the Chalk of Devonshire (F. A. Bather), of 

 Kent (Col. Cockburn), of Trimingham (A. C. Savin) ; Echinoids 

 in Chalk flints, Aberdeen (A. M, Insch) ; Cretaceous Echinoids 

 of France (De Luc, Caziot, A, Michalet) and of Asia Minor; 

 Senonian Crinoids of Riigen (A. Laur). 



The Clypeasters from Mediterranean localities have been 

 revised, and specimens from Sardinia (D. Lovisato) have been 

 registered and incorporated. 



Progress has been made with the sorting and determination 

 of the Wright collection of foreign Echinoidea. 



Cystidea and other Echinoderms specially collected from 

 the Palaeozoic rocks of Sweden have been sorted and pai-tly 

 labelled. The slip-catalogue of Blastoidea has been kept up 

 to date. Slip-catalogues are also in progress for the other 

 classes of Echinoderma. 



Number of specimens of Echinoderma registered : 

 Echinoidea, 746 ; Asteroidea and Ophiuroidea, 47 ; Crinoidea, 

 411 ; Blastoidea, 18; Cystidea, 92. Total, 1,314. 



Aomelida (Gallery 8 and Workroom), — The acquisitions 

 registered, labelled, and incorporated during the year include 

 Annelids from the Chalk of Trimingham, Norfolk (Savin 

 collection), and of Devonshire (Bather collection), from the 

 Corallian of France (Charpy collection), and from the Palaeozoic 

 rocks of Britai^ (Morton collection). 



