172 FIFTEENTH REPORT ON THE CABINET OF NAT. HISTORY. 



PLATE 9. 



Fig. 1, 2 & 3. Cyrtoceras eugenium. 



Fifteenth Report on the State Cabmet. p. 70; Appendix C cent, p, 42. 



Fig. 1, outline of the form; 2, a fragment (dorsal view) preserving a part 

 of the shell, and showing the lines of septa; 3, a portion of the shell near 

 the aperture, showing the sinus in the anterior margin. 



Fig. 4 & 5. Gyroceras neretjs. 



Fifteenth Report on the State Cabinetj p. 67; Appendix C cont. p. 39, 

 Fig. 4, outline of an imperfect specimen; 5, illustrating the character of 

 the lamellose surface. 



Fig. 6. Cyrtoceras morsum. 



Fifteenth Report on the State Cabinet, p. 71 ; Appendix C cont. p. 43, 



Fig. 7. Cyrtoceras metula. 



Fifteenth Report on the State Cabinet, p. 72; Appendix C cont. p, 44. 



Fig. 8. Trochoceras clio. 



Fourteenth Report on the State Cabinet, p. 108. 



Fig, 8, view of the lower side of an imperfect specimen. 



