PLATE X. 



FIGS. PAGE. 



Ctenopyge pecten (Salter). 85 



1. Cranidium. Upper Lingula Flags, Malvern. Museum of Practical Geo- 



logy, 8912. x 4. 



2. Free cheek. Upper Lingula Flags, Malvern. Sedgwick Museum, x 4. 



3. Free cheek. Upper Lingula Flags, Malvern. Museum of Practical Geo- 



logy, 8986. x 4. 



4. Part of thorax. Upper Lingula Flags, Malvern. Museum of Practical 



Geology, 8915. x 4. 



5. Impression of tail. Upper Lingula Flags, Malvern. Sedgwick Museum. 



x 4. 



6. Tail, showing the terminal plate. Upper Lingula Flags, Malvern. 



Museum of Practical Geology, 8981. x 4. 



7. Tail. Upper Lingula Flags, Malvern. British Museum, I. 14846. Dr. 



Holl's Collection. x 4. 



Ctenopyge expansa (Salter). 87 



8. Thorax. Upper Lingula Flags, Moel Gron. Sedgwick Museum. Pre- 



sented by Mr. J. Plant. (Figured by Mr. F. R. C. Reed, Geol. Mag., 

 1900, pi. xii, fig. 3. The counterpart of this specimen is in the 

 British Museum, 59293.) x 4. 



Ctenopyge teretifrons (Angelin). 88 



9. Cranidium, laterally compressed. Upper Lingula Flags, Moel Gron. 



Sedgwick Museum, x 4. 



10. Cranidium. Upper Lingula Flags, Malvern. Oxford University Museum. 



X 4. 



Ctenopyge directa, sp. no v. 89 



11. Cranidium. Upper Lingula Flags, Malvern. Sedgwick Museum, x 4. 



