754 
XIX. 
FAUXA AND FLOIiA OF NORFOLK. 
DiaTOMACEyE. 
* 
By F. Kitton, Hon. F.E.M.S. 
Read 2 ^th March, 1884 . 
Since the publication of Part VII. of the Norfolk Fauna and Flora * 
I have added several genera and species to the list of Diatoms 
found in this County. The system of classification jDrojrosed by 
Prof II. L. Smith lias now been generally ado 23 ted by Diatomists; 
instead, therefore, of only giving a list of the additional forms, I have 
jjrepared a new catalogue in accordance with his system, and have, 
moreover, arranged the sjDecies of each genus in alphabetical order. 
I take this o^^portunity of correcting one or two errors in my 
introduction to the previous list. On page 337 I credit William 
Arderon with the discovery of the first Diatom (the “Oat-animal”). 
I subsequently found that an anonymous contributor to the 
‘Philosophical Transactions’ (see the abridged series 1703), in a 
communication entitled, “ Remarks on M. Leeuwenhoek’s Observa- 
tions on Green AVeeds and Animalcula,” accurately describes and 
figures (jit. 1 fob 8 ), but without naming it, what we now know as 
Tahellarict flocculosa. 
Arderon was probably the discoverer of the first Norfolk 
Diatom. On page 338, line 4 from bottom, for Dendreteres read 
Liparogyra. The present list comprises 65 genera and 345 species : 
5 genera in the old catalogue have been deleted and 11 added, and 
81 have been added to the s^iecies. 
* Trans. Norfolk and Norwich Nat. Soc. vol. ii. (I87G— 77) ji. 33G. 
