Tkii Work will consist of twelve or fourteen Numbers (one Number to be published every 
two Months), which will form, when complete, one moderately-thic o ume. 
Although this Work is to be published miscellaneously, yet the Plates arc numbered, to 
enable the Purchaser to arrange it systematically, when complete. 
The Mowing species, viz. and Afcmfes of Pennant, seem to have been 
introduced into the British Fauna on slender authority, and fragments of a spec.es of the 
genus Squilla which were found by the late Mr. Boys in a Torbay trawl-boat, are preserved m 
the cabinet of Montagu : information therefore on these or on other spec.es is very des, cable, 
alK l we shall feel obliged to any Naturalist who shall render us any assistance m making this 
publication as complete as possible. 
The mode of obtaining Crustacea is easy ; Crab and Prawn-Pits, also the rubbish taken 
from the bottom of the sea by dredgers, should be carefully examined, as either new or rare 
species often occur, and are rejected by the Fishermen as useless ; when obtained they should be 
immersed in fresh water, for the purpose of extracting the salt, after which they should be dried 
in the shade, and if possible, in a draft of air. 
