2 
CHAETOGNATHA, GASTROTRICHA, ROTIFERA 
PAGE 
Subject Index : — 
Comprehensive and General = 1603 , . .. .. ..43 
Structure=1607 .. .. .. .. . . ..44 
Physiology=1611 .. .. . , .. .. ..44 
Developments 615 .. .. .. .. .. ..44 
Ethology =161 9 .. .. .. .. .. ..44 
Variation, Phylogeny= 1623 . . .. .. .. ..44 
Distribution (Geography) =1627 .. .. ,. .. 44 
Systematic = 1631 : — 
Chaetognatha .. .. .. .. .. .. ..45 
Gastrotricha . . . . . . . . . . . . 45 
Rotifera . . . . . . . . . . . . 45 
ANNELIDA, GEPHYREA, PHORONIDEA * 
Subject Index : — 
Comprehensive and General =1803 .. .. .. .. 46 
Structure =1807 .. .. .. .. .. ..46 
Physiology =1811 .. .. .. .. .. ..48 
Development =1815 .. .. .. .. .. ..48 
Ethology =1819 49 
Variation, Phylogeny= 1823 . . .. .. .. ..49 
Distribution (Geography) = 1827 .. .. .. ..49 
Systematic = 1 83 1 : — 
Annelida .. .. .. .. .. ..51 
Archiannelida .. .. .. .. . ..51 
Polychaeta . . t . . . . . . . . . . . 51 
Oligochaeta . . . . . . . . . . . . . . 54 
Hirudinea . . . . . . . . . . . . . . 56 
Echiuroidea . . . . . . . . . . . . 56 
Gephyrea . . . . . . . . . . . . . . 56 
Phoronidea . . . . . . . . . . . . . . 56 
