STUDIES IN PACIFIC COAST ENTOPROCTA. 



BY ALICE ROBERTSON. 



CONTENTS. 



Plate XVI. 



Page. 



I. Introduction 



323 



II. MyOSOMA, gen. NOV 324 



A. structure 324 



1. The Stolon 324 



2. The Polvpide 325 



a. The Calyx 326 



b. The Stalk 331 



c. The Neck 331 



B. Regeneration 332 



C. Disc2ission 333 



III. GONYPODARIA RAMOSA, SP. NOV 337 



A . structure 338 



1. The Stolon 338 



2. The Stalk 338 



3. The Calyx 341 



B. Regeneration 342 



C. Movement 343 



IV. Summary 343 



V. Identification of Known Species 344 



Bibliography 346 



Abbreviations Used in the Figures 347 



Explanation of Plates 348 



I. Introduction. 



The following studies were undertaken at the University 

 of California under the direction of Professor W. E. Rit- 

 ter, for whose cordial interest and unwearied kindness I 

 wish to express my sincere gratitude. 



The object of this paper is, first, to contribute to the 

 knowledge of the Entoprocta by the description of two 

 forms new to science, and secondly, to record the occur- 

 rence on the Pacific Coast of species already known. Of 



[323] December 12, 1900. 



