XV. PISCES 
BY 
0. TATE REGAN, F.R.S. 
CONTENTS 
I. Titles ... 
II. Subject Index 
General 
Economics ... ... 
Structure 
Physiology ... ... 
Development 
Ethology 
Variation and Evolution 
Distribution ... 
Marine 
Fresh Water 
Fossil 
III. Systematic 
General Works 
Marsipobranchii 
Selachii ... ... 
Ichthyodorulites ... 
Pleuropterygii ... ... ... 
Euselachii ... 
Pleurotremata ... 
Hypotremata 
Holocephali 
(n-4840 6) 
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