Plate XLI. 



FIGS. 

 1. 



Actceonella {Trochactceon}, sp. 



2a-d. Erijjtijcha jjerampla, sp. nov. 

 2d, part of last whorl x 8. 



3. Nautilus, sp. ... 



4. PliyUoceras, sp. Griesbach Collection 



4a, X 2; 4/*, apertural view ; 4c, suture x 6. 



5«., h. PliyUoceras, sp. 



6rt, b. Pseucloph'jllites, sp. ... 



la-c. Teiragonites, sp. aff. Gala (Forb.) 



Ic suture x 3. 



8. Gaudryceras Kayei (Forbes). Griesbach Collection 

 8a x IJ ; 8& apertural view of 8a. 



... 328 



... 329 



... 330 



... 331 



... 332 



... 334 



... 335 



... 335 



