PHYLLODISTOMUM AMERICANUM. 



2 53 



four species from fishes of northeastern Africa. I have been 

 greatly interested to find that some of the salamanders of this 

 neighborhood, Amblystoma tigrinwn, are infected with a species of 

 Pliyllodistoinnui unlike any hitherto reported. Pending a later 

 fuller account of the structure of the fluke, this brief notice will 

 indicate the chief points in its anatomy. 



The worm is rather uncommon. In twenty-nine salamanders 

 that have been examined for it it has been found nronly six cases. 



FIG. 2. Sagittal section, >< j6- Camera lucida ; lettering as in Fig. I. 



The parasite is found in the urinary bladder of the salamander. 

 In one case nineteen flukes were found, but this was exceptional, 

 for two, three or four mature flukes is the maximum found in the 

 other cases, beside perhaps two or three small flukes apparently a 

 young stage of the others. The coarser features of the organiza- 

 tion are shown in Fig. I, a ventral view from a specimen preserved 

 (without compression) in corrosive sublimate solution and stained, 



