CONTENTS OF VOL. II. 



Chapter XV. PHORONIDEA. By K. Heider 

 I. Embryonic development . 

 The Actinotrocha larva 

 II. Metamorphosis 



Rise of the organs 

 III. General considerations . 

 Literature 



Chapter XVI. BRYOZOA ECTOPROCTA. By K. Heider 

 Systematic ..... 

 I. Formation of the egg, fertilisation, position of the embryo 

 II. Embryonic development .... 

 General account of the form of the larva . 



III. Metamorphosis .... 



1. Type which develops an alimentary canal 



a. Larva of Alcyonidium . 



b. Larva of Tendra 



c. Larva of Membranipora (Cyphonautes) and Flustrella 



2. Type of the intestineless Chilostomatous larva with sli 



developed corona 



3. Type of the intestineless Chilostomatous larva with 



developed corona 



a. Structure of the larva . 



b. Metamorphosis 



4. Type of the Vesicularian larva 



5. Type of the Cyclostomatous larva 



6. Type of the Phylactolaematous larva . 



IV. Development of the polypide 

 V. Asexual reproduction of the Ectoprocta 



A. Budding 



B. Development of Statoblasts . 



C. Winter buds (hibernacula) . 

 VI. Regeneration .... 



VII. General considerations 



Literature .... 



Chapter XVII. BRACHIOPODA. By K. Heider 

 I. Testicardines . 



A. Embryonic development 



B. Metamorphosis 

 II. Ecardines 



III. Changes in the shape of the shell 



htly 

 highly 



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