NOTES. 



The Notes in the Preface to my Catalogue published in 1890 will, 

 in a great measure, apply also to this Supplemental List. 



The Mollusca in the present list have almost all been obtained by 

 purchase, and by far the greater majority of the more recently 

 characterized species or named forms have been determined by their 

 describers. 



Among the Mollusca of older authors are a valuable series of the 

 specimens sent out by Parreys (whose labels can always be recognized, 

 as being equal sized oblong pieces of paper, on which the name of the 

 shell is written in bold characters, but without any locality or date). 

 These specimens of Parreys were originally in the collection of the 

 Belgian Conchologist, M. Colbeau. M. Colbeau's collection passed 

 into the possession of M. E. Van Den Broeck, and at the dispersal of 

 M. Broeck's collection I had the opportunity of the first selection, and 

 thus secured the types of Parreys and other specimens of interest. 



At the sale of M. Morelet's Mollusca I obtained many of his type 

 examples and other shells of value. 



A. M. NORMAN. 



THE RED HOUSE, 



BlRKHAMSTED, 



HERTS. 



December 18, /poo. 



