4l8 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



EXPLANATION OF PLATE XLIIL 



Page 



Figs. 1-2. Meekoccras ( Kotiinckites ) mushbachanum White, front 

 view and septa of specimen shown on plate xli, 

 figure 1 376 



Figs. 3-4. Meekoceras gracilitatis White, front view and septa of 



specimen shown on plate xlii, figure i 370 



Figs. 5-6. Flemingites russelli Hyatt & Smith, ms. front view 



and septa 378 



Figs. 7-8. Ceratites vogdesi Smith, sp. nov., front view of speci- 

 men shown on plate xliv, figure i, and septa of 

 another specimen 384 



Figs. 9-10. Ceratites (Gymnotoceras) blakei Gabb, front view of 

 specimen shown on plate xliv, figure 2, and septa 

 from another specimen 386 



Fig. II. Eutomoceras dunni Smith, front view of specimen 



shown on plate xlv, figure 4 381 



Fig. 12. Trachyceras (Anolcites) hyatti Smith, front view of 



specimen shown on plate xlv, figure i 389 



Figs. 13-14. Beyrichites rotelliformis Meek, front view of specimen 

 shown on plate xlv, figure 5, and septa from another 

 specimen 379 



