2 
CHAETOGNATHA, GASTROTRICHA, ROTIFERA. 
Subject-Index 
Comprehensive and General =1603 .. 
Structure =160 7 
Physiology =1611 
Developments 615 .. 
Ethology =161 9 
Variation, Phylogeny = 1623 . . 
Distribution (Geography) = 1 627 
Systematic = 1631 : — 
Chaetognatha (vacant). 
Gastrotricha . , 
Rotifera . # . . . . . 
PAGE 
23 
23 
23 
23 
23 
23 
23 
.. 23 
.. 23 
ANNELIDA, GEPHYREA, PHORONIDEA, 
PTEROBRANCHIATA. 
Subject-Index : — 
Phoronidea (vacant). 
Pterobranohiata (vacant). 
Comprehensive and General =1803 .. 
. . - # , 
.. 23 
Structure=1807 
.. 23 
Phy siology = 1 8 1 1 
.. 23 
Development=1815 .. 
., 24 
Ethology =181 9 
.. 24 
Variation, Phylogeny=1823 . . 
.. 24 
Distribution (Geography) = 1827 
* 
.. 24 
ematic = 1831 : — 
Annelida 
• • • • 
.. 24 
Archiannelida 
• • • • 
.. 24 
Polychaeta . . 
• • • • 
.. 24 
Myzostomida (vacant). 
Oligochaeta . . 
• • • • 
.. 26 
Hirudinea 
« • • • 
.. 28 
Echiuroidea 
• • i * 
.. 28 
Gephyrea 
• • • • 
.. 28 
