DEPARTMENT OF GEOLOGY. 187 



A caudal scute of Gyrosteus from the Upper Lias, Whitby. 



Associated teeth of Aster acanthus and bones and scales of 

 Lepidotus from the Oxford Clay of Peterborough (Leeds 

 Collection). 



Ischyodus, Aspidorhynchus, Undina, and three other 

 fishes from the Lithographic Stone, Bavaria. 



A mandibular tooth of Ischyodus from the Faringdon 

 Greensand. 



Leptotrachelus from the Lower Cretaceous, Comen, Istria. 



Macroporaa precursor, a maxilla of Portheus and ten 

 other fish-remains from the English Chalk. 



Fish-fragments from the Middle Eocene of the Fayum, 

 Egypt. 



Mollusca. — Two Orthoceras from the Bala Limestone, 

 Keisley. 



Two Nautilus from the Middle Devonian, Eifel. 



Three Devonian Goniatites from Brilon. 



Nine Cephalopcds from the Carboniferous Limestone of 

 Belgium. 



Seventy-four species of Triassic Mollusca from the Bos- 

 phorus. 



Thirty-five species of Triassic Cephalopoda. 



A hundred and twenty-eight species of Trias Mollusca 

 from Austria. 



A hundred and forty-one Mesozoic Mollusca from the S. 

 of France. 



Twenty Cephalopods of twelve species from the Dogger of 

 Unterwalden, Switzerland. 



A Nautilus from the Oolite, N. Germany. 



Plesioteuthis from the Lithographic Stone, Bavaria. 



Thirteen Ammonites from the Wealden, Gronau, West- 

 phalia. 



Twenty Mollusca from the Lower Greensand of Kent. 



Six Lamellibranchs, one Gastropod, seven Nautilus, seven 

 Ammonites, three Macroscaphites and three Belemnites, from 

 the Hythe Beds, Bensted's Quarry, Aylesford, Kent. 



Three Mollusca from the Faringdon Greensand. 



A hundred and seventy miscellaneous English fossils^ 

 chiefly Cephalopods (Hilton Price Collection) from the Gault. 

 Also Exogyra canaliculata and Hanfiites sp. from the Gault. 



Fifteen Ammonites and one Nautilus from the English 

 Chalk ; and one Heteroceras from the Chalk of Cuxton, 

 Kent. 



A fossil shell in a Chalk flint from the bank of the 

 R. Colne, near Watford. 



