GENUS: EUTRICHOMASTIX 



671 



parabasal described by Janicki (1915) in Devescovina striata (Fig. 32) and 

 T. hatracJiorum (Fig. 275). Similar though smaller parabasal bodies have 

 been described in species of Tricliomonas. Thus, they were seen in 

 T. augusta (Fig. 67) by Alexeieff (1911A) and Kuczynski (1914). The 

 latter observer (1919) found the parabasal of constant occurrence in 

 T. mirahilis, which also possessed the basal fibre, so that the view of 

 Kofoid and Swezy (1915a) that the basal fibre of Trichotnonas is homo- 

 logous with the parabasal of other flagellates is untenable. 



Fig. 216.-~Ditrichomonas termitis (x 940). (After Cutler, 1919.) 



a. Usual type of flagellate, showing the deeply staining parabasal body. 



b. Dividing form, showing two basal fibres and membranes and new axostyles developing. 



c. Later division stage, showing duplication of all the structures. 



Duboscq and Grasse (1924) describe as T. trypanoides a flagellate of 

 termites which has a single thick anterior flagellum. In certain individuals 

 it is represented by two, three, or four finer flagella (Fig. 268). They 

 include Cutler's flagellate in the genus Trichomonas, and propose for it 

 the name T richoftionas immsi, as the name T. termitis was employed by 

 Dogiel (1916) for another form in white ants. 



Genus: Eutrichomastix Kofoid and Swezy, 1915. 

 This genus includes flagellates, which resemble Trichomonas except 

 for the absence of an undulating membrane, the posterior flagellum of 

 Trichomonas being represented by a trailing flagellum (Fig. 265, D). They 



