PLATE I 



Fig. 1. Conularia rtigosa X4/3. 



PLATE II 



Fig. 1. Conularia rugosa. Ornamentation of a portion of the surface near the 

 apex, showing prominent tranverse ridges and small oval pits. X 13. 



Fig. 2. Cotiularia nigosa. Ornamentation of a portion of the surface near the 

 aperture, showing the papillae and less prominent tranverse ridges. 

 X13 



Fig. 3. Conularia rugcsa. Impression of the surface. X 13. 



