VOLUME FIVE NUMBER FOUR 



JOURNAL 



OF 



ENTOMOLOGY 



AND 



ZOOLOGY 



DECEMBER, 1913 



PUBLISHED QUARTERLY BY 



POMONA COLLEGE DEPARTMENT 0/ ZOOLOGY 



CLAREMONT, CALIFORNIA, U. S. A. 



CONTENTS 



A New Eriococcus — E. O. Essig 179 



Studies in Laguna Beach Isopoda, II — Blanche E. Stafford, M. S. 182 



The Nervous System of Chelifer — William A. Hilton - - - - 189 



A New Species of Collembola From Laguna Beach — Gertrude Bacon 202 



Shorter Articles and Reviews of Recent Important Literature 205 

 The Laguna Marine Laboratory ----------211 



News Notes — Fordyce Grinnell, Jr. --------- 222 



Wants and Exchanges 226 



Entered at Claremont, Cal., Post-OfBce Oct. 1, 1910, as second-class matter, under Act of Congress of 



March s, 187B 



