GENUS: JANICKIELLA 



675 



(Dobell, 1909) occurs in frogs, and probably other amphibia. From fish there have 

 been recorded E. motellce (AlexeieiS, 1910) from Motella tricerrata and E. snljjce 

 (Alexeieff, 1910) from Box salpa. In invertebrates are found E. trichopterce (Mackin- 

 non, 1910) from trichoiiteran larvae. It was recorded also by Mackinnon (1915) from 

 tipulid larvae (Fig. 278). Mackinnon (1913) discovered a flagellate in tipulid larvtie 

 which differed from EutricTiomastix trichopterce, which was also present, in that it 

 possessed four, instead of three, anterior flagella in addition to the trailing flagellum. 

 For this reason it was placed in a 

 new genus as Tetratriehomastix 

 parisii. In a later communication 

 Mackinnon (1915) described spheri- 

 cal cysts 4 to 5 microns in diameter. 

 The nucleus of the single flagellate 

 within the cyst divided once to form 

 two nuclei. These cysts belonged 

 either to T. parisii or E. trichop- 

 terce. 



Genus: Janickiella Duboscq and 

 Grasse, 1923. 



Duboscq and Grasse (1923) 

 created a new genus, Janickiella, 

 for a flagellate (J. grassii) which 

 they found in the intestine of 

 the termite, Calotermes flavi- 

 collis. In many respects it re- 

 sembles members of the genus 

 Eutrichomastix (Fig. 279, 3). It 

 is ovoid in shape, with a cyto- 

 stome and long protruding axo- 

 style. In front of the anteriorly 

 situated nucleus are two ble- 

 pharoplasts. One of these is 

 large and gives origin to a long, 

 thick, trailing flagellum and a 

 rod-like parabasal. The other 

 is small, and from it arise the 

 axonemes of three fine anteriorly 

 directed flagella and two rows 

 of granules. In addition to this flagellate, the termites harboured other 

 forms. Two of these were very small flagellates which resembled Trimitus 

 with two anterior flagella or Tricercomonas with three anterior flagella 

 (Fig. 279, 1-2). Duboscq and Grasse (1924rt), as a result of further observa- 

 tions, have reached the conclusion that the small flagellates are young 

 stages of the Eutrichomastix form, which is itself merely a young form of 



D 



Fig. 278. — Eutrichomastix trichopterce from 

 Intestine of Trichoptera Larvae ( x ca- 

 2,600). (After Mackinnon, 1910.) 



A. Flagellate showing four anterior flagella, one of 

 which is a trailing flagellum ; nucleus is some- 

 what farther back than usual ; axostyle is showTi , 

 but not the cytostome, which is sometimes 

 clearly visible. B. Dividing form. 



C. Encysted form. D. Division within the cyst. 



