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Bulletin 18 48 



Explanation of Plate 3. 



Page. 



Fig. i, 2. Bathyurus (?) levis, sp. nov 10, 36 



Top and profile views of a normal gla- 

 bella. The posterior of the glabella is not 

 constricted, as shown in the figure. The 

 so-called "ocellus" (o) is seen midway 

 between the eyes. 



3. Bathyurus (?) ellipticus Cle n, 37 



Top view of pygidium. (For figure of 

 glabella cf. Bull. 13 of this publication.) 



4, 5. Harrisia parabola Cle " 



Top and profile views of a pygidium. For 

 figures of glabella cf. Bull, of this publica- 

 tion. ) 



6, 7. Ribeiria turgida, sp. nov 12, 38 



Lateral and anterior views of a cast of the 

 interior. 



8. Ribeiria, sp. 13, 39 



Lateral view of an imperfect specimen. 



9. Ortkoceras primigenium Van 14, 40 



Side view of a weathered specimed show- 

 ing septa and position of the siphuncle. 

 10. Cross section showing the shape and 

 position of the siphuncle. 



12. Holopea (?) voluia, sp. nov " " 



Profile view of a well preserved specimen. 



13, 14. Holopea raymondia, sp. nov 15, 41 



Top and profile views of a specimen in 

 which the apex is broken. 



15, 16. Try bliduun patulum, sp. nov " " 



Profile and top views of the only specimen 

 found. 



