PLATE XII. 



[Oligocene and Miocene Series.) 



Figure 1. Ccelopleurtjs Forbesi, d'Archiac (page 53). Apical system, magnified. 



2. EusPATANGUs AFFiNis, Duncan and Sladen (page 46). Abactinal view. 



3. EuspATANGTJs PATELLARiSj d^Archiac (page 70). Actinal view. 



4. Odd ambulacnim, magnified. 



5. Fasciole, magnified. 



6. EcHiNOLAMPAs sPHiEROiDALis, d'Archiac (page 64). Abactinal view. 



7. EcHiNODiscus DesorIj Duncan and Sladen (page 60). Abactinal view. 



8. Actinal view. 



9. Lunule, magnified, 



10. Peristomej part of, magnified. 



11. Clypeasteb Sowerbyi, Duncan and Sladen (page 49). Abactinal view. 

 I'i. Carteri, Duncan and Sladen (page 49). Abactinal view. 



13. Waageni, Duncan and Sladen (page 58). , Abactinal view. 



14- GoiRENSis, Duncan and Sladen (page 59). Abactinal view. 



15. - — - Faloriensis, Duncan and Sladen (page 50). Abactinal view. 



16. Goirensis, Duncan and Sladen (page 59). End of petal, magnified. 



