TRANSACTIONS OF MICROSCOPICAL SOCIETY. 
"I 
DESCRIPTION OF PLATES VIII & IX, 
Illustrating Dr. Greville^s paper on New Diatoms. 
Series XIX. 
Kg. 
1 . — 'Flagiogramma orientale. 
2. — Gephyria constrida, valve. 
3 — 6. — Melosira castata. 
1 .—Cfesswellia riidis. 
8—10. — Coscinodiscus Lewisiams. 
11.—- „ Normanianus. 
19.-— „ Barbadensis. 
13. — „ elegans. 
14. — Uupodisens Hcirdmaniamts. 
15. — Crb^pedodiscus umbonatus. 
16. — BiddulpUa Chinensis. 
17. — „ podagrosa. 
18. — Triceratium replettm, 
19. — J, piclumtum. 
20. — „ laniuM. 
21. — J, quincimlobatum. 
22 — 28. — Syrbigidium Bmmon. 
29. — Navicnla speclatissima. 
30, 31. — Stanroneis rotundata. 
' 32. — „ scaphulceformis. 
All the figures X 100 diameters, except fig. 16, which is x 200. 
