2 
CHAETOGNATHA, GASTROTRICHA, ROTIFERA. 
Subject Index : — 
Comprehensive and General = 1603 , . . . .. 
Structure= 1607 .. . . .. . . 
Physiology=1611 
Development— 1615 .. 
Ethology = 1619 .. .. 
Variation, Phylogeny= 1 623 . . . . .. . . 
Distribution (Geography) = 1627 .. .. . . 
Systematic = 1 631 : — 
Chaetognatha .. .. .. .. .. 
Gastrotricha . . . . . . . . .... 
Rotifera . . . . .... 
ANNELIDA, GEPH57REA, PRIAPULOIDE A. 
PHORONIDEA, PTEROBRANCHIATA. 
Subject Index : — 
Comprehensive and General = 1803 .. 
Structure=1807 .. .. 
Physiology =1811 
Development= 1815 .. .. .. .. 
Ethology = 181 9 
Variation, Phylogeny= 1823 . . 
Distribution (Geography) = 1827 
Systematic = 1831 : — 
Annelida 
Archiannelida 
Polychaeta . . 
Myzostomida (vacant). 
Oligochaeta . . . . . . .... 
Ilirudinea . . . . . . . . . . 
Echiuroidea (vacant). 
Gephyrea (Sipunculoidea) . . , . . . 
Priapuloitlea (vacant). 
Phoronidea 
Pterobranehiata (vacant). 
CAGE 
22 
23 
23 
23 
23 
23 
23 
23 
23 
23 
23 
24 
24 
24 
24 
24 
24 
25 
25 
25 
27 
27 
28 
28 
