NEW 'J'YEE OK KROTISTAN PARASITE. 
457 
Figs. 29, 30, and 32. — Individuals in which the body is dividing, but 
of which the flagellum has remained single. One of the daughter- 
individuals will be aflagellate. 
Fig. 33. — A small individual in the very last stage of division. 
Figs. 34 and 35. — Small pyriform individuals, probably immediately 
resulting from fission. 
Figs. 36 and 37. — Aflagellate crescents. 
Fig. 38. — Bean-like crescent, which may be transitional to an oval. 
Figs. 39-71 are of ovals, from “ wet-fixed ” films, stained by iron- 
hsematoxylin. 
Figs. 39-57. — Ovals with the first type of minute structure. 
Figs. 39-48, 54. — Single individuals of various size. 
Figs. 49-53, 55 and 57. — Individuals showing different stages of fission. 
Figs. 58, 60-62, 64-68. — Single individuals showing the second type of 
minute structure. 
Figs. 59, 61.— Individuals transitional between ovals of the first and 
second tyj^e. 
Fig. 63. — Small dividing individual. 
Figs. 69-71. — Ovals showing two definite granules at opposite sides, 
connected by a line or ring (see text). The individual of fig. 71 is 
apparently beginning to divide. 
Figs. 72-82 are of crescents stained by Giemsa. 
Figs. 72 and 73. — Single individuals ; flagellum normal. 
Fig. 74. — Dividing individual ; flagella normal. 
Figs. 75-77. — Individuals showing artificial fraying-out of the 
flagellum. 
Fig. 78. — Smallest crescent found on a Giemsa smear. 
Fig. 79. — Dividing individual, the upper flagellum of which shows 
indication of fraying-out. 
Figs. 80-82. — Aflagellate crescents, showing one or two conspicuous 
chromatinic masses. 
Figs. 83-87. — Ovals stained by Giemsa. In fig. 87 the envelope 
stands off markedly from the body and shows an annular line (cf . figs, 
70 and 71). 
