676 GENERA: TRICHOMITUS AND DEVESCOVINA 



Trichomonas dogieli (Fig. 279, 4). Is it further suggested that other flagel- 

 lates, such as Joenia, may enter into the life-cycle of Janickiella grassii, and 

 that the flagellates belonging to the genera Enterotnonas and Tricercomonas 

 may be merely young forms of others. It has been pointed out above that 

 E. hominis is probably a young form of Chilomastix mesnili (see p. 307). 



Fig. 279. — Flagellates from Intestine of the Termite, Calotermes flavicoUis, 

 ILLUSTRATING THE DEVELOPMENT OF Janichielld grassii (x ca. 2,000). (After 



DUBOSCQ AND GrASSE, 1924.) 



1. " Trimitus " stage with two anterior flagella. 3. " Eutrichomastix " stage. 



2. " Tricercomonas " stage with three anterior flagella. 4. " Trichomonas '" stage. 



Genus: Trichomitus Swezy, 1915. 

 This genus was founded by Swezy (1915fl) for a flagellate from am- 

 phibians. It resembles a member of the genus Trichomonas with three 

 flagella, but differs in the absence of an axo.style. It was named 

 Trichomitus parvus. Later Kofoid and Swezy (1919) placed in this genus as 

 T. termitidis a structurally similar but much larger flagellate found in the 

 termite, Termopsis angusticollis, of California. It varies in length from 

 75 to 150 microns. An elaborate system of fibres, called the neuromotor 



