UNIVERStTY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 20, No. 4, pp. 99-1 16, plates 13-14, 1 figure in text July 14, 1919 



STUDIES ON THE PARASITES OF THE TERM- 

 ITES IV. ON LEIDYOPSIS SPHAERICA 

 GEN. NOV., SP. NOV. 



BY / *''^f>. 



CHAKLES ATWOOD KOFOID and OLWE 8wil^ r o , 

 CONTENTS 



PAGE 



Introduction 100 



Morphology _ 100 



Shape and size _ 101 



Neuromotor system 102 



Eetoplasmic structures 102 



Surface ridges 103 



Locomotor organelles 103 



Oblique fibers 103 



Centroblepharoplast 104 



Alveolar layer 105 



Endoplasmic structures _ _ 105 



Longitudinal myonemes 105 



Nucleus 106 



Binary fission „ 107 



Division of eetoplasmic structures 107 



Mitosis 108 



Prophase 108 



Metaphase _ 109 



Anaphase 109 



Telophase _ 110 



Eelationships 110 



Summary Ill 



Literature cited 113 



Explanation of plates 114 



