CONTENTS 



PAGE 



2. CHILOMASTIX I29 



3. EMBADOMONAS I29 



4. TRICERCOMONAS 1 29 



5. GIARDIA 130 



II. Specific Characteristics 130 



1. TRICHOMONAS VAGINALIS I30 



2. TRICHOMONAS BUCCALIS I3I 



3. TRICHOMONAS HOMINIS I32 



4. CHILOMASTIX MESNILI 1 33 



5. EMBADOMONAS INTESTINALIS I33 



6. TRICERCOMONAS INTESTINALIS 1 34 



7. GIARDIA LAMBLIA 1 34 



III. Host-Parasite Relations between Man and His Intes- 

 tinal Flagellates 135 



1. TRICHOMONAS VAGINALIS 1 35 



2. TRICHOMONAS BUCCALIS I39 



3. TRICHOMONAS HOMINIS I4I 



(i) Epidemiology of Transmission . . 141 



(2) Distribution and Localization 



Within the Host 146 



(3) Pathogenicity 150 



(4) Host-Parasite Specificity . . . 153 



4. giardia lamblia 1 54 



(i) Epidemiology of Transmission . . 154 



(2) Localization Within the Host . 157 



(3) Pathogenicity 159 



(4) Host-Parasite Specificity . . . 161 



5. other intestinal flagellates .... 169 



(1) chilomastix mesnili 169 



(2) embadomonas intestinalis . . . i70 



(3) tricercomonas intestinalis . . . i7i 



CHAPTER IV 



INTESTINAL INFUSORIA 172 



I. Balantidium coli 172 



1. MORPHOLOGY I72 



2. LIFE-CYCLE I73 



3. HOST-PARASITE RELATIONS 1 73 



4. HOST-PARASITE SPECIFICITY 1 79 



xii 



