PLATE II 



Fig. I. Pergamaster incertus, abactinal surface of type specimen, B.M. 



1907. 59-45 ; R 26-27 mm., r 14 mm. , 

 Fig. 2. Abactinal view of same specimen, x 3. 

 Fig. 3. Pergamaster synaptorus, type, actinal view, x i-66. 

 Fig. 4. Notioceramus anomalus, type, actinal view, x i-66. 



