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. 531)- 



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



Fig. 4. — Gyroceras alatmn 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. g. — Tropites phcebus Dittmar (after Branco). 



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



Fig. II. — Crioccras emerici L^veill6 (after T. Wright, Pal. Soc, 

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



Fig. 12. — Turrilites 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. 



