262 FLAT WORMS 



tinous material. The majority of these cysts are without scolices. This form of 

 hydatid is very fatal. 



Sparganum mansoni (Bothriocephalus liguloides) . This is a larval bothrio- 

 cephalid which is about 5 to 10 inches long and has been reported ten times in Japan. 

 It has been found in various parts of the body, as in pleural cavity, tissues about 

 kidney, and in abscess of the thigh. They have been found in the urethra and under 

 the conjunctiva. They resemble ribbon-like strings of fat. 



Sparganum prolifer (Plerocercoides prolifer). This has been reported from 

 Japan as a larval form in the subcutaneous tissue. Stiles has found these larval 

 forms in skin lesions in Florida. They show themselves as bizarre grub-like forms. 

 They reproduce by budding. 



