[Taxacom] Corrigenda and nomenclature

[Dr. David Campbell]

Frierson (1927, A Classified and Annotated Check List of the North 
American Naiades) in some copies has a typewritten (conspicuously not 
matching the printing of the book) page of Errata et Corrigenda.  On it 
he proposes replacements for three preoccupied genus names and 
identifies certain species listings in the main text as showing the 
type of the respective genus or subgenus.  I have not confirmed whether 
any new species names have spelling corrected (one new genus listed 
once with a presumably incorrect spelling different from the rest of 
the text is not corrected).  

Are the replacement genera valid as of this?  Are the type designations 
valid?  

(ICZN applies; "naiad" has been used of plants but this is freshwater 
mussels).  

-- 
Dr. David Campbell
425 Scientific Collections Building
Department of Biological Sciences
Biodiversity and Systematics
University of Alabama, Box 870345
Tuscaloosa AL 35487-0345  USA