PLATE IX. 



FIGS. PAGE. 



Ctenopyge bisulcata (Phillips). 81 



1. Thorax, long form. Upper Lingula Flags, Malvern. Museum of Practical 



Geology, 8884. x 4. 



2. Thorax, broad form. Upper Lingula Flags, White-leaved Oak, Malvern. 



Museum of Practical Geology, 8940. x 4. 



3. Thoracic segment, showing median spine. Upper Lingula Flags, White- 



leaved Oak, Malvern. British Museum, I. 148-50. G. H. Piper Collec- 

 tion, x 4. 



4. Small thorax with tail, very imperfect. Upper Lingula Flags, Malvern. 



Sedgwick Museum, x 4. 



Ctenopyge falcifera, sp. nov. 84 



5. Head and thorax. The right free cheek appears to be nearly in its natural 



position, the left one is pushed partly over the fixed cheek. Upper 

 Lingula Flags, Rhiwfelyn. Sedgwick Museum. Presented by Mr. 

 D. Homfray. X 4. 



6. Hypostome. Upon the same slab of rock as fig. 5. x 6. 



Ctenopyge pecten (Salter). 85 



7. Cranidium and thorax. Upper Lingula Flags, White-leaved Oak, Malvern. 



British Museum, I. 14844. Presented by Mr. J. E. Lee. (The 

 horizon is given as Lower Lingula Flags.) X 4. 



8. Head and thorax. Upper Lingula Flags, Malvern. Museum of Practical 



Geology, 8916. x 4. 



9. Part of head, thorax and tail (external cast). Upper Lingula Flags, 



Malvern. Museum of Practical Geology, 8914. X 4. 



