PREFACE. 



The object aimed at in the present Work, which, it is 

 intended, will be followed by others of a similar character, 

 has been to present a complete Catalogue of all the Stalk- and 

 Sessile-Eyed Crustacea, so far as these are at present known, 

 with a description of each species, as well as of the tribes, 

 families, and genera. The need of such compilations is much 

 felt in Australia, on account of the absence in the Colonies of 

 complete scientific libraries, and the consequent difficulties 

 experienced by those studying the science of zoology in any 

 of its branches, in obtaining access to original memoirs. It 

 is hoped that the present Catalogue will not only afford a 

 guide to the Museum collections, but will also prove a great 

 boon to students of this branch of systematic Zoology, 

 throughout the Australian Colonies generally. 



A work of the present kind cannot lay claim to much 

 originality, — the greater number of the descriptions having 

 already been published elsewhere ; but many of the species 

 enumerated have not previously been recorded as inhabitants 

 of Australian waters, and a very large number of new 

 Australian localities for known Australian species are now 

 here published for the first time. A short Introduction 

 describing briefly the chief structural characteristics of the 

 Stalk- and Sessile-Eyed Crustacea, has been added, and will, 

 it is hoped, prove useful. 



