CHAPTER X 



The Flagellates (Continued) 



Trichomonas elongata. Relations. Morphology. Hab- 

 itat and Effects. Treatment. Trichomonas vaginalis. 

 Prevalence. Transmission, Habitat and Effects. Treat- 

 ment. 



TRICHOMONAS ELONGATA (BUCCALIS) 



As previously discussed, the Trichomonas of the 

 mouth of man was given three names by Steinberg 

 (1862), Trichomonas elongata, Trichomonas caudata, 

 Trichomonas flagcUata, he thinking he observed 

 three varieties. The writer (1922) called attention 

 to the priority of Steinberg's naming over that of 

 Goodey, Tetratrichomonas buccalis, although con- 

 forming to Kof old's acceptance of the corrected name, 

 Trichomoiias buccalis (Goodey). This was because 

 Trichomonas buccalis had come into common usage. 

 Following the example of Wenyon (1926), however, 

 it is concluded that the first name used by Steinberg, 

 Trichomonas elongata, is the correct one. 



Tricho7nonas elongata has not been, with certainty, 

 differentiated from Trichomoiias vaginalis or Tri- 

 chomonas hominis and should it be shown to be 



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