616 



G. R. VINE ON SILURIAN UNISERIAL 



Pigs. 1-8. — Stomatopora dissimilis, Vine, from the Buildwass heds, 

 Upper Silurian, Shropshire. 



1. Colony adherent to Crinoid stem. Each of these colonies has been drawn 



j with the Camera lucida, from three 



2. ,, „ J- separate specimens on Crinoid stems, 



I the habit of each colonial growth be ing 



3. ,, „ „ „ J somewhat dissimilar in character. 



