DR. LAUDEK LINDSAY ON NEW ZEALAND DIATOMACE-Sl. 131 



general. It was confined, further, to fresTitvater species ; and it 

 was made altogether under circumstances unfavourable to the 

 arrangement of a typical series, or of the gathering new or in- 

 teresting forms *. 



Considering the frequency with which fossil Diatoms occur, 

 and are found identical with, or closely allied to, existing spe- 

 cies, I anticipated the discovery of not a few interesting forms 

 m the Newer Tertiary Marine Limestones (or Calcareous Sand- 

 stones) of the Grreenisland district of Otago, which abound in 

 mmute Foraminifera ; but Professor Eupert Jones, of Sandhurst, 

 who has kindly examinedf the series of these rocks I collected in 

 1861, reports the non-discovery, as yet, of any Diatoms. Still I 

 think they will be found, though the interest attaching to their 

 discovery can scarcely be complete till we are in a position to com- 

 pare with them the existing Diatoms of the sea-bottom of the 

 New Zealand coasts- 



Earn. I. EUNOTIE^ 



+ 



Grenus 1. EpixnEMiA. 



1 , E. gibba, Ehr. 



2, E. musculus, K, 



3, E. Westermanniae, Ehr. 



4. E. zebra, Ehr, 



5. E. turgida, Ehr, 



6. E. sorex, K, 



Genus 2. Eunotia. 



1. E. gracilis, Sm, 



Genus 3. Himantidium 



1. H. pectinale, K. 



2. H. bidens, Ehr, 



Earn. II. MEEIDIE^ 

 Genus 1. Meeidion. 



1. M. circulare, Grev. 



2. M, constrictiim, Ralfs* 



Specially: 



\ to learn that one-half of the muds, &c., 

 itainincr Diatoms, were found to contain 



I I am indebted for the determination of the species, as well as for the arrange* 

 »ent, in the following list, to the kindness of Dr. Greville, of Edinburgh, the 

 nrst living British authority in tliat no less intricate than interesting special 

 department of botanical research which relates to the Diatomace«e. He is de- 

 »cnbmg and figuring the new species in the Trans. Bot. Soc. Edinb. 



k2 



