x CONTENTS 
CHAPTER XIX 
ARACHNIDA (APPENDIX 1) 
PAGE 
TARDIGRADA — OccURRENCE — Ecpysis — SrrucruRE — DEVELOPMENT — 
AFFINITIES—BIOLOGY—DESICCATION—PARASITES—SYSTEMATIC . ean 
(CISPALIEME ID ey, NOS 
w ARACHNIDA (APPENDIX II) 
PENTASTOMIDA — OcCURRENCE — Economic IMPORTANCE — STRUCTURE — 
DEVELOPMENT AND LiFE-HISTORY—SYSTEMATIC . ‘ ; : . 488 
PYCNOGONIDA 
(OUST AIPM MID IR = OCI 
PYCNOGONIDA : : ; : : : i 3 5 A s SD Ot: 
INDEX 5 c : : . : ; ; , é : ; . 543 
