48 



Retepora. 



Def. : lamellis parallells planis & horizontalibus & perpendic 



intersect. 

 i R. maxima Gotland. 



2 R. media Gotland. 



3 R. minor Gotland. 



4 R. mimima Gotland. 



t 



EsCHARA. 

 E. in fuco Helsing. Litt. mar. 



Smectis Speksten? 



