ZOOLOGY

JUNE, 1919

PUBLISHED QUARTERLY BY

POMONA COLLEGE DEPARTMENT of ZOOLOGY

CLAREMONT, CALIFORNIA, U. S. A.

CONTENTS

Page

Annelids from Laguna Beach27

Structure of Dolichglossus Pusillus—Alma Evans 28

Opisthobranchs from Laguna Beach34

Central Nervous System of the Sand Dollar Dendraster Excentricus Esh.—W. A. Hilton35

Ants from the Claremont-Laguna Region38

Entered Claremont, Cal., Post-Office Oct. 1, 1910, as second-class matter, under Act of Congress of March 3, 1879