TRANSACTIONS OF MICROSCOPICAL SOCIETY. 



DESCRIPTION OF PLATE II, 



Illustrating Mr. G. Norman's paper on some Undescribed 



Species of Diatomaceae. 



Kg. 



1. — Asterolampra Stella. 



2.~^Surirella Baldjikii. 

 3. — Coscinodiscusfuscus. 

 4. — Nitzsehia vitrea. 

 5. — Aulacodiscus SolliUianus. 

 6. — Eupodiscus ovalis. 

 - ■ 7. — Navicula bullata. 



All magnified 400 diameters. 



