EXPLANATION OF THE FIGURES. 

 PLATE V.* 



Fig. I. Orthoceras timidum Barrande (after Zittel, Pal., ii, 

 Fig. 518). 



Fig. 2. Cyrtoceras corbulatum Barrande (after Zittel, Pal., ii, 

 Fig. 53i)- 



Fig. 3. Cyrtoceras murchisoni Barrande (after Zittel, Fig. 529). 



Fig. 4. Gyroceras alatum Barrande (after Zittel, Fig. 535). 



Fig. 5. Nautilus planotergatus McCoy (after Zittel, Fig. 539). 



Fig. 6. Lituites lituus Montf. (after Zittel, Fig. 536). 



Fig. 7. Bactrites protoconch (after Branco, Palaeontographica, 

 vol. xxvii, 1880). 



Fig. 8. Mimoceras compressum Sandberger (after Branco, Pal., 

 vol. xxvii, Plate VIII). 



Fig. 9. Tropites phcebus Dittmar (after Branco). 



Fig. 10. Lytoceras liebigi Oppel (after Zittel, Pal., ii, Fig. 632). 



Fig. \\.-Criocerasemerici LeVeille (after T. Wright, Pal. Soc., 

 vol. xxxiv, 1880, Lias Ammonites, Fig. 86). 



Fig. 12. Tiirrilites catenatus d'Orb. (after Zittel, Pal., ii, Fig. 

 640). 



Fig. 13. Baculites compressus Say (after A. P. Brown, Proc. 

 Acad. Nat. Sci., Philadelphia, 1892, Plate IX, Fig. i). 



Fig. 14. Macroscaphites ivanii d'Orb. (after Zittel, Pal., ii, 

 Fig. 635). 



* Drawings by Frances R. Smith. 



