No. 646] TAPEWORM INFECTION 



441 



showed them to be heavily parasitized with larval tape- 

 worms which attack the abdominal cavity. From all ap- 

 pearances these larvae somewhat resemble those described 

 by Professor Linton in 1889 for the trout of Yellowstone 

 National Park, and, undoubtedly, belong to the genus 

 Dihothmim or Diphj/Uohofhriuw. but are probalily of a 



