TRANSACTIONS OF MICROSCOPICAL SOCIETY. 



DESCRIPTION OF PLATE IX, 

 Illustrating Dr. Greville's paper on New Diatoms, Series III. 



Fig. 



] . — Brighltcellia elaborata. 

 2, 3. — Triceratimi notabilia. 



4. — T. microcephalum. 



5. — T. insiguis. 



6. — T. rotuudatum. 



7. — T. amoenum. 



8. — T, obscurum. 



9. — T. Harrisonianum. 

 10. — T. giganteum. 

 11. — Aniphitetras mimda. 



All the figures are X 400 diameters. 



