34 



63. CYRENA TRIGONA, Deshayes. 



Coqtiilles foss. Bassin de Paris 1824. 

 Disy. (Ex auctore.) 



64. CYRENA DESHAYESII, Hebert. 



Bull. Soc. geol. de France 1848. 

 Sernier. (Ex Deshayes Collection.) 



65. CYRENA ACUTANGULARIS, Deshayes. 



Invert. Bassin de Paris 1857. 

 Chalons- sur-vesles. (Ex auctore.) 



