X. CRUSTACEA 
ARRANGED BY 
W T. CALM AN, D.Sc., F.R.S. 
CONTENTS 
I. Titles ... 
II. Subject-Index : — 
General,. Economics ... 
Structure 
Physiology ... ... 
Development 
Ethology 
Variation and Aetiology ... , 
Distribution: — 
1. Geographical : — 
A. General (vacant). 
B. Land and Fresh- water 
C. Marine 
2. Geological ... 
III. System A.TIC Index ; — 
Decapoda 
Brachyura ... ... 
Oxyrhyncha 
Cyclometopa 
Catometopa ... 
Oxystomata 
Dromiacea 
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C 2 
(n-13799 1) Q 
