DEPARTMENT OF GEOLOGY. 165 



-One fragment of Onychodus sigmoides and one 

 Machcer acanthus peracutus from the Corniferous Limestone 

 of New York, U.S.A. 



One Do'epanaspis gemuendenensis from the Lower De- 

 vonian of Gmiinden. 



One head of Asterolepis, two specimens of Psammosteus 

 tessellatus (one being part of the type specimen), and two 

 shields and three pieces of Psammosteus taylori, from the 

 Upper Old Red Sandstone of Nairn and Elgin. 



One specimen of Myriacanthus paradoxus irom. the hower 

 Lias of Black Ven, Lyme Regis, showing dorsal fin-spine in 

 association with the head. 



The hyomandibular and branchial arches of Leedsia prob- 

 lematica from the Oxford Clay near Peterborough. Collected 

 by A. N. Leeds, Esq. 



One Macropoma, four Physostomous fishes, two Acantho- 

 pterygian fishes, one Plethodus, two groups of teeth of 

 Ptychodus, and three Selachian teeth, from the English Chalk. 

 Collected by G. E. Dibley, Esq., f.g.s., according to their 

 zones. 



Specimens of Anogmius, Pachyrhizodus, and Saurodon, 

 collected by C. H. Sternberg, from the Chalk of Kansas, 

 U.S.A. 



One specimen of Trygon inuricatus from the Upper 

 Eocene, Monte Bolca. 



Various fish-remains (Phyllodus, Acipenser, Notidanus, 

 &c.) from the Red Crag. 



Mollusco,. — One Rhynchorthoceras from Sweden, and 

 three Helicoceras from the Cretaceous of Japan. 



Seventy-eight Cephalopoda, five hundred and tw^enty-nine 

 Gastropoda, and one hundred and five Lamellibranchia from 

 the Carboniferous Limestone of Tournai, Belgium (Ad. Piret 

 Collection). 



One Lima gigantea from the Lower Lias of Chadbury 

 Gloucestershire. 



Six hundred and forty-one Cephalopoda and thirteen 

 hundred and forty-five other Mollusca from the Jurassic 

 Rocks, chiefly in Gloucestershire, being part of the collection 

 of the late E. Witchell, Esq., f.g.s., and including a hundred 

 and sixteen type and figured specimens. 



Six hundred and sixty-seven Cephalopoda, four hundred 

 and seventy-nine Gastropoda, and seven hundred and forty- 

 three Lamellibranchia, from the Jurassic Rocks, chiefly in the 

 neighbourhood of Evesham, being part of the collection of the 

 late R. F. Tomes, Esq., f.g.s. 



Sixty Cephalopoda, one Gastropod, and one Lamellibranch, 

 collected by Prof. E. Koken from the Permo-Carboniferous 

 Rocks of the Salt Range. 



