THE WADSWORTH GALLERY."' 



33 



No. 17. Ophioderma tgertoni.^^T^ One 

 of the most perfect and beautiful 

 of the Ophiuridae. 



Lias: Lyme Regis, England. 



No. 18. Ammonites macrocephalus'^'^ 

 (Group " Macrocephali " of Von Buch). 

 Oxford clay: "Wiltshire, England. 



No. 19. Toxoceras moutonianus.^" Very perfect specimen, over 

 two and a half feet long. 



Lower Greensand: EscragnoUes, Franee. 



28. 



No. 20. Scaphites ivani.^^ Specimen with 

 the whorls of the early age of the shell quite distinct. 

 Lower Greensand: Barreme, France. 



No. 21, Cidaris blumenhackii.*^ Specimen with 

 the spines still adhering. 



Coral Rag: Wiltshire, England. 



No. 22. Hippurites radiosa. Lower valve. 



White Chalk: Vache-Perdue, France. 



[ Senate No. 90.] 



