2 
CHAETOGNATHA, GASTROTRICHA, ROTIFERA 
PAGE 
Subject Index : — 
Comprehensive and General = 1603 , . . . . . . . 40 
Structure=1607 .. .. .. .. . .. .. 41 
Physiology =1611 .. .. .. .. . . ..41 
Developments 615 .. .. .. .. .. ..41 
Ethology = 1619 .. .. .. .. . . ..41 
Variation, Pliylogeny = 1623 (Vacant) 
Distribution (Geography) =1627 .. .. .. .. 41 
Systematic =1631 : — 
Chaetognatha . . . , . . . . . . . . . . 42 
Gastrotricha (Vacant) 
Rotifera . . . . . . . . . . . . . . 42 
ANNELIDA, GEPHYREA, PTEROBRANCHIATA 
Subject Index : — 
Comprehensive and General =1803 .. .. .. ..43 
Structure=1807 .. ... .. .. .. ..43 
Physiology = 1811 .. .. .. .. .. ..44 
Development =1815 .. .. .. .. .. ..44 
Ethology =1819 .. .. .. .. .. ..45 
Variation, Phylogeny= 1823 . . .. . . .. ..46 
Distribution (Geography) = 1827 .. .. .. .. 46 
Systematic = 1831 : — 
Annelida . . . . . . . . . . . . 47 
Archiannelida (Vacant) 
Polychaeta . . . . . . . . . . . . . . 47 
Myzostomida . . . . - , . . . . . . 51 
Oligochaeta ... . . . . . . . . . . . . 51 
Hirudinea . . . . . . . . . . . . . . 52 
Echiuroidea (Vacant) 
Gephyrea . . . . . . . . . . . . . . 52 
Phoronidea (Vacant) 
Pterobranchiata . . . . . . , . . . . . 52 
