ADVERTISEMENT. 

Tre object of this Work is, to publish new sub- 
jects as they occur, and to figure those species which, 
having been confounded with others, require elucida- 
tion. 
In the Naturalist’s Miscellany, and in other works. 
of a similar kind, it has been usual to repeat the gene- 
ric character whenever different species were given ; 
but as this appears to be unnecessary, we shall on such 
occasions merely refer to the character, unless it should 
require amendment. 
The Figures, unless mentioned to the contrary, will 
represent the animals of the natural size. 
At the completion of each volume, a Systematic 
Index, with an Index of Synonyms alphabetically ar- 
ranged, will be given, and any incorrections that shall 
have occurred will be noticed. 
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