VOLUME TWELVE NUMBER THREE 
JOURNAL 
~ ENTOMOLOGY 
ZOOLOGY 
SEPTEMBER, 1920 
PUBLISHED QUARTERLY BY 
POMONA COLLEGE DEPARTMENT of ZOOLOGY 
CLAREMONT, CALIFORNIA, U.S. A. 
CONTENTS 
Page 
A List anp Some Notes ON THE LiIz@ARDS AND SNAKES REPRESENTED 
IN THE Pomona CoLLEGE MuseEuM—Raymond B. Cowles - - 63 
Tue CentraL Nervous SysTEM OF AN UNKNOWN SPECIES OF 
Marine Lefcu—William A. Hilton - - - - - - - 67 
Centra Nervous System or a CenTIPEDE—4rthur S. Campbell - - 69 
Microscopic StupIES OF THE WATER OF THE CLAREMONT-LAGUNA 
Recion—Geneveive Corwin - - - - - - = - - 72 
PRELIMINARY List oF Microscopic LirE IN FrEsH WATER PooLs 
ArounpD Lacuna BEACH - - =) 5) = 02 Us 7 74 
PRELIMINARY List oF Microscopic Lire IN FresH WATER AROUND 
TARE MONTE oe VERDI aig SEs TAL RAGE Vr IR? gis Wier then 
GENERAL REACTIONS OF A CENTIPEDE—Susie Case - - - - - 79 
NorTEs ON THE CENTRAL NeERvouS SysTEM OF A FREE-LiviNG MarRINE 
NematovE—William A. Hilton - - - - - - - - 82 
—————$——————— 
Entered Claremont, Cal., Post-Office Oct. 1, 1910, as second-class matter, under Act of Congress of, 
March 8, 1879 
, 
