UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 18, No. 3, pp. 45-60, plates 2-3 October 17, 1917 



DESCRIPTION OF SOME NEW SPECIES OF 



POLYNOIDAE FROM THE COAST OF 



CALIFORNIA 



BY 



CHEISTINE ESSENBERG 



CONTENTS 



[* OCT 30 1917 



""f'o, 



PAGE 



Introduction 45 



Acknowledgment 45 



General description of the Polynoidae 46 



Description of new species 48 



Harmothoe bonitensis, sp. nov 48 



Hannothoe johnsoni, sp. nov 50 



Halosydna macrocephala, sp. nov 53 



Literature cited 56 



Explanation of plates 58 



INTRODUCTION 

 In 1897 Dr. H. P. Johnson reported that there were thirteen 

 species of Polynoidae on the Pacific Coast. The number of species 

 has increased since that time to about fifty. The purpose of this 

 paper is to add to that list some species which have not been described 

 by any of the previous workers. 



ACKNOWLEDGMENT 



The work was carried on in the Zoological Laboratory of the 

 University of California. The writer wishes to express her sincere 

 gratitude to Professor Charles A. Kofoid for his interest and valuable 

 criticisms of this work. 



