168 FIFTEENTH REPORT ON THE CABINET OF NAT. HISTORY, 



PLATE 7. 



Fig. 1. GOMPHOCERAS BETA. 



Fifteenth Report oq the State Cabinet, p. 72; Appendix C cont. p.^4. / C^ 



Fig. 2 & 3. Orthoceras multicinctum. 



Fifteenth Report on the State Cabinet, p. 76; Appendix C cont. p. 48. 



Fig. 4. Orthoceras thoas. 



Fifteenth Report on the State Cabinet, p. 75; Appendix C cont. p. 47. 



Fig. 5. Orthoceras hyas. 



Fifteenth Report on the State Cabinet, p. 75; Appendix C cont. p. 47. 



Fig. 6 & 7. Orthoceras foliatum. 



Fifteenth Report on the State Cabinet, p. 74; Appendix C cont. p. 46. 



Fig. 6, the interior of a portion of the shell, showing the lamellose exten- 

 sions into the surrounding stone; 7, a cast, or imprint, showing the sinuosity 

 of the lamellose extensions on the anterior side. 



Fig. 8. Orthoceras profundum. 



Fifteenth Report on the State Cabinet, p. 76; Appendix C c^nt. p. 48. 



