CONTENTS Vll. 



PAGE 



Chapter V. Examination of Helminthes and of their developmental stages 128 



1. Trematodes .. .. .. .. .. .. ..128 



(a) Distoma of frogs . . . . . . .. . . . . . 129 



(b) Opisthorchis, Dicroccelium, Fasciola .. . . . . . . 133 



(c) Sections from Fasciola . . . . . . . . . . 138* 



(d) Trematodes of the domestic animals . . . . . . 140 



(e) Development of diagenetic Trematodes . . . . . . 141 



2. Cestodes .. .. .. .. .. .. ..143 



(a) T&nia varieties of man and the domestic animals . . . . 144 



(b) Dibothriocephalus . . . . . . . . . . . . 145 



(c) Sections from Cestodes . . . . . . . . . . 149 



(d) Examination of Cysticercoid stages . . . . . . . . 152 



(e) Cestodes of the domestic animals . . . . . . . . 155 



Tania .. .. .. . . . . . . 155 



Anoplocephala . . . . . . . . . . . . 156 



Moniezia . . . . . . . . . . . . . . 157 



Hymenolepis, Davainea . . . . . . . . . . 159 



3. Nematodes . . . . . . . . . . . . . . 159 



(a) Preparation of Ascaris . . . . . . . . . . 159 



(b) Sections from Ascaris .. .. .. .. .. 161 



(c) Examination of small varieties . . . . . . . . 162 



(d) Nematodes of domestic mammals . . . . . . . . 164 



4. Acanthocephala . . . . . . . . . . . . 165 



NOTE : Hirudinea ; preparation ; sections . . . . . . 169 



PART III. ARTHROPODA ... .. .. .. .. ..174 



1. Acarina . . . . . . . . . . 176 



(a) Ixodes . . . . . . . . . . . . . . . . 176 



(b) Gamasidce, Tyroglyphidce, Sarcoptidce ... .. .. 180 



(c) Demodex, LinguatulidcB . . . . . . . . . . 182 



2. Insecta . . . . . . . . . . . . 183 



(a) Bed-bugs .. .. .. .. . . .. ..183 



( 6 ) Lice . . . . . . 185 



(c) Fleas .. _ 187 



(d) Diptera . . . . . . . . . . . . . . _ 190 



Larvae of Muscidce and CEstridce . . . . . . . . 191 



