XI. ARACHNIDA 
TO WHIOH ARE ADDED 
* 
G I G AN TOST R AO A (XIPHOSURA, TRILOBITA, EURYPTERIDA), 
PANTOPODA, TARDIGRADA, PENTASTOMIDA, MYRIOPODA 
and PROTOTRACHEATA 
ARRANGED BY 
STEPHEN K. MONTGOMERY, B.A., B.Sc. 
CONTENTS. 
PAGE 
Gigantostraca. 
I. Titles = 2800 .. .. .. .. .. .. .. 4 
II. Subject-Index=2803-2827. . .. . . . * .. 5 
III. Systematic Index = 2831 : — 
1 rilobita i*. *. •« •» *• •• •• 5 
Xiphosura, etc. .. . . .. .. .. .. 8 
Eurypterida . . . . . . . . . . . . . . 8 
Pantopoda. 
I. Titles =2800 .. .. .. .. .. .. .. 9 
II. Sub.ject-Index= 2805-2827 . . •• . • . . •• 9 
HI. Systematic Index= 2851 .. .. .. *• ». 9 
(n-13246 n) q 
b 19 
