116 
Haematozoa in Wild Animals 
Free Parasites. 
Figs. 26—27. Single free parasites of amoeboid form with rounded, compact nuclei and 
deeply blue-staining protoplasm. 
Fig. 28. Single free parasite with two nuclei, the chromatin being diffusely distributed. 
The parasite was presumably expelled prematurely from the containing corpuscle. 
Figs. 29—30. A pair of free parasites and a group of four free parasites which have just 
escaped from corpuscles. Some of the parasites appear amoeboid. 
PLATE XI. 
Haemogregarina canis adusti n.sp. 
x 3600 
Figs. 1—3. Free parasites. Fig. 3 shows the enveloping membrane or cytocyst and diffuse 
chromatin; in Fig. 2 there are scattered chromatin points in the protoplasm. 
Figs. 4—5. Parasites contained in mononuclear leucocytes whose nuclei are compressed 
hy the body of the parasite. In Fig. 4 the nucleus of the parasite appears reti¬ 
cular. 
Spiroehaeta bovis eaffris n.sp. 
x 3600 
Figs. 6—9. Spirochaetes showing variation in size but uniformity in shape. Whereas in 
Fig. 6 the parasite shows no internal structure, in Figs. 7 and 8 the chromatin occurs 
as fine dust throughout the faintly violet-blue staining protoplasm. In Fig. 9 there 
are achromatic transverse bands visible. 
