PLATE II. 



DEVONIAN SPECIES. 



Fig. 

 1 — 5. Stringocephalus Burt'ud, Def. Young shells. Middle Devonian, Bradley, near 



Newton. Museum of the Geological Society. 



6. „ „ Prom Woolborough Quarry, near Newton Abbot. Col- 



lection of Mr. Walton. 



7. „ „ = St. giganteus, Soav. After Phillips' 'Pal. Foss. of 



Cornwall, Devon, and West Somerset,' pi. xxxii, 

 fig. 142. 



8. „ „ = St. giganteus. A very large, distorted, flattened 



specimen. Prom near Plymouth. Mus. Geol. 

 Soc. 



9. „ „ = Uncites /avis, M'Coy. After M'Coy, ' British Pal. 



Fossils,' pi. 2 A , fig. 6. From near Newton. 

 Cambridge Museum. 



10, 11. „ „ Specimens showing the internal dispositions of the 



loop, &c. j reduced figures after the originals 

 by Prof. E. Suess. 



