b 



Fig. 37. a, Plicatellopsis expansa 

 (Thiele), large style and small 

 tylostyle; b, P. arborescens, sp.n., 

 large and small styli; c-e, P. 

 fiabellata (c = tylostyle of main 

 skeleton, c' small style, c", c'" 

 long flexuous tylostyle, d-d'" 

 bases of tylostyli of main skele- 

 ton, e showing shapes of main 

 tylostyli). 



a' 



