Barrande Syst Silur de Bohéme.Yol V, 



PI. 101 



3 a 



3b 

 1 



3 4 3 



4.b 



i 



4, g 4 A 



4' a 



IV 



^Se.:- 



•7ï3>b 



I B# 



■.>Si 



t 





Vil 



i 



^' 



Humbert htb 



imp Lemercier iC'.Paris 



