CONTENTS. 
Page 
Introduction . . . . . . . . . . . . 15 
Bntoprocta — 
Key to the family Urnatellidae . . . . , . . . . . 16 
Chitaspis, gen. nov. . . . . . . ' . . . . . . 16 
Ectoprocta — 
Preparation of specimens of Ctenostomata for microscopic examination . . ig 
Classification of the Ctenostomata . . . . . . . . . . 20 
Family Alcyonidiidae . . . . . . . . . . 22 
F'amily Triticellidae . . . . . . . . . . 23 
Family Vesiculariidae . . . . . . . . . . 24 
Family Paludicellidae . . . . . . . . . . . . 28 
Paludicella pentagonalis, sp. nov. . . . . . . . . . 30 
Family Victorellidae . . . . . . . . . . 31 
Family Hislopiidae . . . . . . . . • ■ 33 
Key to the Genus Hislopia . . . . . . -33 
Hislopia malayensis, sp. nov. . . . . . . • • 35 
