2 
Distribution = 1227, 1427, 1627, 1827: — 
(a) Recent : — 
(a) Marine 
(/5) Non-Marine 
(b) Fossil 
III. Systematic Index= 1231, 1481, 1631, 1831:— 
General . . 
PJatyhelmini;hes=1231 
Turbellaria . . . . . . 
Trernatoda . . . . . . 
Oestoda 
Nemertea . . . . . . . . 
Mesozoa 
Nernathelminthes=1431 
Nematoda 
Nematomorpha 
Acanthocephala 
Chaetognatha .. 
Potifera 
Gastrotriclia and Echinodera . . 
Archiannelida - . ; . • 
Polychaeta . . , . . , . . , , 
Oligocliaeta 
Gephyrea . . . . . . 
Phoronidea and Pterobranchia- ' . i 
Hirudinea ^ . . . . . 
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. 4^ 
. 4^ 
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. 4a 
. 43* 
. ‘43‘ 
. . 44 ,■ 
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. '47 
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