VOLUME THIRTEEN NUMBER TWO 



JOURNAL 



OF 



ENTOMOLOGY 



AND 



ZOOLOGY 



JUNE, 1921 



PUBLISHED QUARTERLY BY 

 POMONA COLLEGE DEPARTMENT 0/ ZOOLOGY 



CLAREMONT, CALIFORNIA, U. S. A. 



CONTENTS 



Page 

 A List of California Arachnida 



II. Pedipalpida, M. Moles 11 



III. SCORPIONIDA, F. A. Cox 12 



IV. SoLPUGiDA, J. Nesbrt 14 



Notes on the Sense Organs in Some Asteroids — 



Arthur S. Campbell 15 



Nervous System and Sense Organs 



V. PT. A. Hilton 34 



Eotered ClBremont, Cal., Post-Odice Oct. I, IQIO. as srcond-class matter. undtT Act of Congress of 



March 9, 187B 



