8 TABLE OF CONTENTS 



E. Intestinal Ciliates of man. 1. Classification. 2. De- 



scription of species, (a) Balantidium coli. (b) Nycto- 

 therus. 3. Methods of diagnosis 36 



F. Some vegetable organisms in human feces. 1. Blasto- 



cystis hominis. 2. Intestinal yeasts 37 



PART II. WORMS PARASITIC IN MAN 



1. Introduction 38 



2. Diagnosis of diseases caused by parasitic worms 38 



3. Key for diagnosis of human helminths 42 



4. Trematoda 49 



A. Definition 49 



B. Systematic position of human forms 50 



C. Intestinal trematodes. 1. Fasciolopsis buskii. 2. He- 



terophyes heterophyes. 3. Metagonimus yokogawai ... 50 



D. Liver flukes. 1. Genus Clonorchis. 2. Opisthorchisfe- 



lineus 52 



E. The lung fluke. Paragonimus westermanii 53 



F. Blood flukes. Genus Schistosoma 57 



5. Cestoda 57 



A. Definition 57 



B. Order Pseudophyllidea. Diphyllobothrium latum (Di- 



bothriocephalus latus) 58 



C. Order Cyclophyllidea. 1. Genus Hymenolepis. 2. 



Genus Taenia. 3. Echinococcus granulosus (Taenia 

 echinococcus) 59 



6. Nematoda 62 



A. Definiti6n 62 



B. Family Angiostomidae. Strongyloides stercoralis 62 



C. Family Dracunculidae. Dracunculus medinensis 63 



D. Family Filaridae. 1. Filaria bancrofti. 2. Filaria oz- 



zardi (Filaria demarquayi). 3. Loa loa (Filaria loo). 

 4. Acanthocheilonema perstans (Filaria perstans). 5. 

 Dirofilaria magalhaesi. 6. Onchocerca volvulus 64 



E. Family Trichinellidae. 1. Trichuris trichiura. 2. Tri- 



chinella spiralis 67 



F. Family Metastrongylidae 68 



G. Family Trichostrongylidae. Trichostrongylus orientalis 68 



